Caffeine Essays & Research Papers

Best Caffeine Essays

  • caffeine - 966 Words
    Comm 10 Major #1 Informative Speech Evidence Homework #1 Topic: Caffeine Preview: Every morning when I wake up the first thing I do after brushing my teeth is walk straight to the coffee pot. I pour myself a hot rich cup of coffee to start the day off. On my way out the door I grab my go cup and fill it up. When I finally get to school I get myself another cup of coffee. How many miller grams of caffeine do you think I have drank at this point? According to the Mayo Clinic a healthy...
    966 Words | 3 Pages
  • caffeine - 1038 Words
    Julia Sellman Neuroscience and Technology Caffeine In America today, nine out of ten individuals consumed caffeine. They were most likely consuming it within either a cup of coffee, some kind of soda, or the latest energy drink available. The effect of caffeine usually lasts about 2 hours and affects the body in multiple ways. It increases production of acidic juices in the stomach, speeds up heart rate, relaxes muscles found in the lungs to make breathing easier, prepares skeletal muscles for...
    1,038 Words | 3 Pages
  • Caffeine - 1680 Words
    1-1 EXPERIMENT 1 ISOLATION OF CAFFEINE FROM TEA In this experiment you will isolate caffeine from tea leaves and prepare the salicylate derivative. Introduction This experiment illustrates the isolation of a naturally occurring product from plant material -- caffeine from tea leaves. The experiment will provide experience in handling relatively small amounts of material and at the same time you will be exposed to several techniques and procedures which are fundamental for survival in an...
    1,680 Words | 9 Pages
  • CAffeine - 2800 Words
    The Effects of Caffeine 1 The Effects of Caffeine and Placebo on Computer Typing Skills St. Olaf College May 14, 2009 The Effects of Caffeine 2 Abstract This study examined the effects of caffeinated versus caffeine-free CocaCola and Diet Coke on the speed, accuracy, error and words per minute of typing skills. 30 undergraduate students participated in the experiment for academic credit for an introductory to psychology class. The participants consumed their choice of soda and were...
    2,800 Words | 13 Pages
  • All Caffeine Essays

  • Caffeine - 1322 Words
    Caffeine in the diet Email this page to a friend Bookmark & Share Printer-friendly version Caffeine is a substance that is found in certain plants. It can also be man-made (produced synthetically) and then added to food products. It is a central nervous system stimulant and a diuretic (substance that helps rid your body of fluids). Function Caffeine is absorbed and passes quickly into the brain. It does not collect in the bloodstream or get stored in the body. It leaves the body...
    1,322 Words | 6 Pages
  • Caffeine - 1120 Words
    I. Introduction A. Attention Getter: If you drink some kind of caffeine on a daily basis or close to that often, please raise your hand. Those you without your hands raised make up a rare percentage of today’s Americans. An article published in the Chicago Tribune on October 19, 2011 by Julie Deardorff, stated that nearly 90% of Americans drink coffee on a regular basis. B. Relevance Statement: When asked if you drank coffee or another source of caffeine regularly, the majority of the class...
    1,120 Words | 4 Pages
  • Caffeine - 938 Words
    Caffeine is a naturally occurring compound found in the leaves and fruits of certain plants. Caffeine is found in coffee, tea, cocoa, cola soft drinks and energy drinks. It may also be found in chocolate bars, energy bars and some over-the-counter medications, like cough syrup and slimming tablets. Caffeine has had a long and rich history; humans have been consuming caffeine since the Stone Age. Early peoples found that chewing the seeds, bark, or leaves of certain plants had the effects of...
    938 Words | 3 Pages
  • FDA and Caffeine - 470 Words
    Reference U.S. Food and Drug Administration-Medicines in your home-Caffeine. (2007). Retrieved January 25, 2015. From http://www.fda.gov FDA and Caffeine: 90% of people in the world use caffeine in one form or another. 80% of adults consume caffeine every day in America. Average daily consumption of 200 mg per day, (equals two 5-oz coffees or 4 sodas) Caffeine is found naturally in plants, coffee beans, tea leaves, and chocolate. Caffeine is added into many foods, drinks, and medicines. It is...
    470 Words | 2 Pages
  • Caffeine Isolation - 1429 Words
    Isolation of Caffeine in Tea Introduction Today’s world is addicted to coffee and tea for an easy wake up. Both contain caffeine, a drug known for its stimulant properties. Tea, by weight, contains approximately 2-4% caffeine, and the average cup of tea has anywhere from 40 to 120 mg of caffeine (Landgrebe, 327; Mayo Clinic Staff). According to the American Heart Association, caffeine not only stimulates the brain and nervous system, but it releases fatty acids from adipose tissue, and...
    1,429 Words | 4 Pages
  • Disadvantage of Caffeine - 989 Words
    Republic of The Philippines University of Southeastern Philippines Institute of Computing Caffeine Informative Speech John Cedrick D. Balaguer BSIT 3 English 3 : Speech and Oral Communication Skills 1st Semester S.Y. 2013 – 2014 July 17, 2014 1 of 1 Caffeine has been used widely around the world over centuries, and today it is estimated that 80% of the world’s adult population consumes caffeine in one form or another. What is it about caffeine that has made it so...
    989 Words | 4 Pages
  • Caffeine Study - 1993 Words
    What is the content difference between energy drinks and coffee and are they safe? There are hundreds of different brands of energy drinks being marketed and their caffeine content per can or bottle ranges from just 50 mg to as much as 505 mg (Weise, 2008). Energy drinks are most commonly consumed by people 11-35 years old (Ballard et al., 2010). Energy drink companies can say anything they want about energy and performance effects of the drinks, and while some energy drinks are banned in...
    1,993 Words | 7 Pages
  • Informative Caffeine - 824 Words
    Caffeine Topic: Caffeine General Purpose: To inform Specific Purpose: At the end of my speech, my audience should understand the beneficial effects of caffeine, the negative effects and discuss what are considered safe levels of caffeine consumption. Thesis Statement: The three areas I will cover in my speech are the beneficial effects of caffeine, the negative effects and discuss what are considered safe levels of caffeine consumption. Introduction Attention-Getter: If...
    824 Words | 3 Pages
  • Caffeine Addiction - 1259 Words
     Caffeine Addiction 1,3,7 –trimethylxanthine, also known as caffeine, is considered the most commonly used psychoactive drug in the world (Caffeine). Caffeine stimulates the central nervous system, eases fatigue, increases energy, and improves concentration and focus (Staff). “When purified, caffeine produces an intensely bitter white powder that provides a distinctive taste in soft drinks” (Caffeine). An addiction, is when a person ingests a substance, or engages in an activity that...
    1,259 Words | 4 Pages
  • Caffeine Synthesis - 1722 Words
    Amanda Carlson Amy Ruppert English 101, 9am March 11, 2011 Synthesis Paper Many Americans have included caffeine as a part of their daily diet whether they realize it or not. In fact, “caffeine is the most consumed psychoactive substance in the world” (Ruxton How is this instead (Caffeine is especially common throughout…) 15). It is found very especially commonly throughout every day foods and consumed mostly though through coffee, tea, soda, and chocolate (Spiller 200). Many...
    1,722 Words | 5 Pages
  • Caffeine Report - 674 Words
    Discussion Our results indicate that consumption of caffeinated coffee in comparison with decaffeinated coffee causes a slight rise in the mean change in pulse and respiration rate. However, the range bars of those that consumed caffeinated coffee and those that consumed decaffeinated coffee in The Mean Change in Pulse Rate graph overlap. Similarly the range bars in The Mean in Change in Respiration Rate graph overlap. This suggests that the mean change in pulse rate of decaffeinated and...
    674 Words | 2 Pages
  • Caffeine extraction - 2952 Words
    Objective: To extract caffeine from tea powder using polar - nonpolar solvent extraction technique. Theory: The technique used to separate an organic compound from a mixture of compounds is called Extraction. Extraction process selectively dissolves one or more of the mixture compounds into a suitable solvent. The solution of these dissolved compounds is referred to as the Extract. Here the organic solvent dichloromethane is used to extract caffeine from an aqueous extract of tea...
    2,952 Words | 10 Pages
  • Extraction of Caffeine - 789 Words
    Discussion In this experiment, Caffeine was extracted from a commercial tea bag through solid-liquid extraction, and then further purified through sublimation. To begin the extraction, the commercial tea bag containing ~55mg of caffeine was placed in a mixture containing 2.2g of anhydrous sodium carbonate along with 20 ml of D.I. water. The sodium carbonate was placed into the solution to keep the caffeine from becoming slightly acidic(protonated), which would prevent the caffeine from being...
    789 Words | 2 Pages
  • Caffeine and its effects - 436 Words
    Caffeine is a bitter, white crystalline xanthine alkaloid and a stimulant drug. Caffeine is found in varying quantities in the seeds, leaves, and fruit of some plants, where it acts as a natural pesticide that paralyzes and kills certain insects feeding on the plants, as well as enhancing the reward memory of pollinators. It is most commonly consumed by humans in infusions extracted from the seed of the coffee plant and the leaves of the tea bush, as well as from various foods and drinks...
    436 Words | 2 Pages
  • Caffeine Consumption - 355 Words
    Caffeine and Coffee Consumption Maddie Schierbeek Psychology 7th block Why do so many people, especially high school students consume so much caffeine? Perhaps 70-minute classes are too much to handle. Maybe the AP course load is overwhelming. Or perhaps problems at home cause a lack of sleep. Everyone has their reasons. On the other hand, there may be a scientific reasoning behind it. Caffeine highs are followed by caffeine lows. This cycle results in a need for caffeine: addiction....
    355 Words | 2 Pages
  • Extraction of Caffeine - 1381 Words
    73 SERIES SPECTROPHOTOMETER Application note: A09-010A The quantitative determination of caffeine in beverages and soft drinks using UV wavelength spectroscopy Introduction Caffeine is a naturally occurring alkaloid which is found in the leaves, seeds or fruits of over 63 plants species worldwide. The most common sources of caffeine are coffee, cocoa beans, cola nuts and tea leaves and the worldwide consumption of products derived from these natural materials means that caffeine is one...
    1,381 Words | 5 Pages
  • Speech on Caffeine - 885 Words
    Title: Caffeine Specific purpose: To inform my audience what exactly caffeine is, where it comes from, the benefits of caffeine and the negative effects of caffeine. Introduction A. Attention material: Do you ever feel like you will never make it through the day without caffeine? Is your first thought in the morning to get yourself a cup of coffee before you can even get your day started? B. Tie to the audience: I am sure that most of you do consume at least one form of...
    885 Words | 3 Pages
  • Caffeine Analysis - 884 Words
    Good evening everyone. I’d like to introduce my self first. My name is David Cho * Caffeine is used to provide a "boost of energy" or a feeling of being more alert. It's often used to stay awake longer and many people feel as though they "cannot function" in the morning without a cup of coffee to provide caffeine and the boost it gives them. 9 in 10 Americans consume some form of caffeine regularly, making it the most popular behavior-altering drug. * Caffeine is a naturally...
    884 Words | 3 Pages
  • Caffeine Purpose - 308 Words
    Mehrnaz Farnoosh Speech 101 M-W 1 pm. Informative Speech TITLE: Caffeine PURPOSE: THESIS: I. Introduction: A. Attention Getter B. Preview: How many of you woke up this morning and had a cup of coffee, tea, or an energy drink? II. Body: A. 90% of people in the world use caffeine in one form or another. In the U.S. 80% of adults consume caffeine every day (FDA.GOV) . Caffeine whether it is consumed in a food or as medicine it changes the way your...
    308 Words | 2 Pages
  • Caffeine as a Teratogen - 964 Words
    Teratogenetics: Caffeine as a teratogen Chase Palmer Fremont High School Hansen p.4 Abstract The purpose of this paper is to identify the teratogenetic affects of caffeine in unborn children and breast feeding children. The following topics will be discussed: Risk of congenital anomalies, risk of spontaneous abortion, risk of low birth weight and preterm labor as well as, the critical period of the teratogen, short term and long term affects, and the changing danger of the teratogen...
    964 Words | 3 Pages
  • The Effects of Caffeine - 639 Words
    Caffeine What do you call a cow who's just given birth? De-calf-inated! How many of you have had a cup of coffee today? How about a soft drink? Chocolate? An Excedrin? All of the above products have one thing in common: They all contain caffeine. In this speech, we'll look at caffeine's origins and how it spread, some caffeinated products, and the effects that caffeine has on the body. On any given day, four out of five Americans have a already digested it, making it the World's most popular...
    639 Words | 2 Pages
  • Effects of Caffeine - 568 Words
    Caffeine Concerns How many times have you felt a bit tired and decided to rely on an energy drink, a cup of coffee, or a can of cola to charge your body with caffeine and boost your energy levels to maximum? If your answer is “frequently” then you are on a precarious path to poor health. Not only does caffeine have numerous emotional side effects, it will also disrupt your sleep, and cause harm to your body. For all of its immediate benefits, caffeine is one of the most harmful substances in...
    568 Words | 2 Pages
  • Extraction of Caffeine - 1896 Words
    Extraction of Caffeine from Tea leaves Casinabe, Antonio Karlo,*Catahay, Jesus Alfonso, Cerdena, O’neil, Cordova, Robelle Department of Biological Sciences, College of Science University of Santo Tomas, España Street, Manila 108 Group 4 2MB Date Submitted: December 13, 2012 ------------------------------------------------- ABSTRACT: The purpose of this experiment is to extract the amount of caffeine present in tea bags. In this experiment, isolation, characterization and...
    1,896 Words | 7 Pages
  • Caffeine Speech - 770 Words
    Speech Outline Title: Caffeine Specific purpose: To inform my audience about the effects and health issues of caffeine. Thesis: Caffeine can have many different effects on the body depending on the amount of consumption. Introduction A. Attention Getter – How many of you here consider yourself caffeine addicts? How much soda do you drink a day? One bottle? Two cans? More? How about coffee? B. Thesis statement – Caffeine can have many different effects on the body depending on the...
    770 Words | 3 Pages
  • The Science of Caffeine - 363 Words
    Chi Nguyen 10/10/2014 Topic: The Science of Caffeine Thesis question: How does Coffee work? What exactly does it do to our brain? Working thesis: Caffeine, known as 1,3,7 - trimethylxanthine in coffee can help people staying awake when they are tired. Caffeine, 1.3.7 - trimethylxanthine, is considered to be one of the most popular drug in the world. Caffeine, nitrogenous organic compound of the alkaloid group, is a bitter substance that does have physiological effects. Caffeine is...
    363 Words | 2 Pages
  • Caffeine Addiction - 386 Words
    In his book Caffeine Blues a famous researcher, health educator, and clinical nutritionist Stephen Cherniske compares remaining healthy and strong throughout life to a battle. “Caffeine is the Trojan horse. It looks like a gift but instead delivers adrenalin stress, low blood sugar, mood and energy swings, fatigue, depression, malnutrition, and disturbed sleep”. Although caffeine is considered a mild drug, the consequences of caffeine addiction are rather severe and include physical and mental...
    386 Words | 1 Page
  • Isolation of Caffeine from Coffee
    ------------------------------------------------- Isolation of Caffeine from Coffee Date of laboratory work: 10/9/2012 5:00-7:45 Date of report written: 10/15/2012 Introduction: The purpose is to isolate caffeine from coffee by using the organic solvent dichloromethane (CH2Cl2) that is also referred to as direct contact. Calcium carbonate (CaCO3) is used to remove the tannins from the coffee. Afterwards an extraction is used to separate the organic layer (bottom)...
    873 Words | 4 Pages
  • caffeine and placebo effect - 782 Words
    Caffeine and the Placebo Effect Plants produce caffeine as a protective pesticide, paralyzing feeding insects. This powerful substance has been used as a stimulant for centuries. The use of caffeine as an energy booster dates back to the Stone Age through coffee, tea and cocoa. Synonymous with caffeine, coffee has grown into a $70 billion industry with no signs of slowing down. It's a good source of antioxidants, a social atmosphere, and a legal stimulant. Coffee drinkers come back for more...
    782 Words | 5 Pages
  • Caffeine and Competitive World - 268 Words
    Teenagers today live in a very competitive world. It is more important than ever to succeed at school if you hope to have a chance in the job market afterwards. It’s no wonder that many young people worry about letting down their parents, their peers and themselves. In trying to please everyone. they take on too many tasks until it becomes harder and harder to balance homework assignments, parties, sports activities and friends. The result is that young people suffer from stress. There are...
    268 Words | 1 Page
  • Caffeine vs Sleep - 625 Words
    Caffeine and Sleep • Sleep Topics Caffeine has been called the most popular drug in the world. It is found naturally in over 60 plants including the coffee bean, tea leaf, kola nut and cacao pod. All over the world people consume caffeine on a daily basis in coffee, tea, cocoa, chocolate, some soft drinks, and some drugs. Because caffeine is a stimulant, most people use it after waking up in the morning or to remain alert during the day. While it is important to note that caffeine...
    625 Words | 3 Pages
  • Cause and Effect of Caffeine - 655 Words
    Caffeine How many of you here consider yourself caffeine addicts? How much coffee do you drink a day? One cups? Two cups? More? How about caffeinated sodas and energy drinks do you drink? I know I have at least one energy drink a day, what about you. Hi my name is Ryan George and I am going to talk about How Caffeine can effect you. Caffeine is an influence in our society these days and every few months we hear about how a study has shown that it is bad for us or good for us. What are we to...
    655 Words | 2 Pages
  • The Truth About Caffeine 1
    The truth about caffeine How many of you here consider yourself caffeine addicts? How much coffee do you drink a day? One cup? Two cups? More? If you crave caffeine to get you through the day, you're not alone. About 68% of Americans say they're hooked on coffee this year, compared with 64% last year, according to the National Coffee Association. But of course, Caffeine and related compounds are found not only in coffee, but also in tea, soft drinks, and chocolate....
    751 Words | 3 Pages
  • The effect of caffeine on heart rate
    Description To investigate the effect on caffeine on heart rate of water fleas and to understand the risk of high level consumption of caffeine to the health of the human circulatory system and nervous system. Preview Diagram 1: Chemical structure of caffeine Image source: http://ismaastricht.wikispaces.com/file/list The images above show the chemical structure of caffeine which has a chemical formula of C8H10N4O2. Caffeine was named by the International Union of Pure and Applied...
    468 Words | 2 Pages
  • A Double-Edged Sword - Caffeine
    Caffeine: A double-edged sword Introduction: Nowadays, caffeine is well known as the most popular and widely consumed drug. We can find it from foods and drinks, even many medications contain this substance, it is pervasive in our daily lives. Caffeine is one kind of rapidly absorbed organic compound. It is classified as stimulant witch can increase alertness and energy levels for a short period of time (website). Caffeine can be used as pharmacologic substance as well, for example, it...
    1,430 Words | 5 Pages
  • The Effects of Caffeine on the Human Body
    Rosalyn Elias Speech 1311 Dr.Gilmore July 26, 2010 The Effects of Caffeine on the Human Body I. In a quote by Eddie Vedder, I read "Caffeine, the Gateway drug." Around 90 percent of Americans consume caffeine every single day in one form or another. Consuming as little as 100 mg of caffeine a day can lead a person to become "dependent" on caffeine, yet it is legal and unregulated in many jurisdictions. Making it the most popular drug by far. In this speech I am going to explain how...
    521 Words | 2 Pages
  • Caffeine and Reaction Time - 1286 Words
    Daniel Kim 12-3-12 HBS, period 1 Reaction time experiment Caffeine and Reaction Time 1) Identify the Problem or Question How does the consumption of caffeine affect the reaction time of the nervous system? 2) Introduction Purpose of the experiment: To identify the whether or not caffeine increases or decreases the reaction time of the nervous system. In our experiment, we have decided to use all the “cases” which will test how fast a signal from our brain will be sent to...
    1,286 Words | 5 Pages
  • Caffeine and Its Effects on Your Brain
    Caffeine is a drug that helps people stay awake or alert. It is also known as trimethylxanthine, a naturally occurring chemical stimulant. The formula for caffeine is C8H10N4O2. It shares several traits with famous drugs like amphetamines, cocaine and heroin. It uses the same biochemical mechanisms as these drugs to stimulate brain function. Caffeine has its benefits, but it also has several draw backs. In this paper, we will explore these and come up with an answer to “is it worth it?”...
    1,430 Words | 4 Pages
  • Effects of Caffeine on Endurance - 3165 Words
     What is the Effect of Caffeine Consumption on Endurance among Elite Runners Under the Age of 40 in Developed Countries? Abstract Running and other endurance exercises are restricted by various natural causes of fatigue. (Callahan, 2011) Caffeine, a white crystalline drug, is often used by athletes as a stimulant during exercise to minimize the effects of fatigue. The purpose of this literature review is to determine if there is a causal...
    3,165 Words | 9 Pages
  • Caffeine and Its Effect on Reaction Time
    Stage 1 Psychology Research Report Affects of caffeine on reaction time Proposal: Caffeine is used by many people to increase their energy levels. It alters an individual’s alertness and their reaction time. Though the most common form of caffeine is coffee, it can also be found in certain...
    557 Words | 17 Pages
  • Caffeine C and E - 369 Words
    What Do I Get From My Morning Coffee Some people are morning people, but I am not one of those people. Every morning it seems as if I am in a fog until that warm cup of coffee touches my lips. Similar to a drug habit, the more a person drinks coffee, the more it seems like that person can’t function without it. But what are you really getting from your coffee? Along with other factors, coffee can have both positive and negative effects on your health. Coffee improves the body’s tolerance...
    369 Words | 1 Page
  • The Effects of Caffeine on the Human Body
    How does Caffeine affect the human body? Caffeine is the world’s most popular drug (Spiller, 1998), and can be found in over 60 species of plants throughout the world. Consumption of caffeine comes from cola, coffee, cocoa, tea, some medications and so much more. In this paper I will describe the effects of caffeine on the human body, from the health risks to how it can help your body; here are just some of the ways caffeine affects the human body both physically and psychologically. First...
    615 Words | 2 Pages
  • The Effect of Caffeine on Plant Growth
    Effec | Effect of caffeine on plant growth | Description This science fair project was performed to find out the effect on plant growth of adding caffeine to the soil. The experiment was done by using mung bean plants and watering them daily with water, water mixed with caffeine and with a coffee mixture. Hypothesis The mung beans watered using the coffee mixture will grow the fastest. Overview Caffeine and plant growth The effect of adding caffeine to the soil and its effect on...
    826 Words | 4 Pages
  • Neuropsychiatric Effects of Caffeine - 2094 Words
    Neuropsychiatric effects of caffeine Abstract Psychiatrists rarely enquire about caffeine intake when assessing patients. This may lead to a failure to identify caffeine-related problems and offer appropriate interventions. Excessive caffeine ingestion leads to symptoms that overlap with those of many psychiatric disorders. Caffeine is implicated in the exacerbation of anxiety and sleep disorders, and people with eating disorders often misuse it. It antagonises adenosine receptors, which may...
    2,094 Words | 6 Pages
  • Caffeine in Tea Samples - 2358 Words
    T4/13/13 Chemistr y Pr oject to Deter mine the Caffeine in Tea Samples Chemistry, C++, Physics, Maths, Biology, Social Science Home Biology C++ Chemistry IP Maths Physics Social Science Ty pe tex t to s earc h here... Home > Chemistry > Chemistry Project to Determine the Caffeine in Tea Samples Chemistry Project to Determine the Caf f eine in Tea Samples Determination of Caffeine in Tea Samples ACKNOWLEDGEMENTS First of all T would like to thank my cousin brother M r....
    2,358 Words | 12 Pages
  • Effect Caffeine Has on Daphnia
    Does caffeine affect heart rate? Background Information: Caffeine is a bitter white crystalline xanthine alkaloid that acts as a psychoactive stimulant drug. A German chemist, Friedrich Ferdinand Runge, discovered it in 1819. Plants produce caffeine as an insecticide. It is found in varying quantities in the beans, leaves, and fruit of over 60 plants, where it acts as a natural pesticide that paralyses and kills certain insects feeding on the plants. Cocoa in South America, coffee in Africa...
    1,573 Words | 6 Pages
  • Caffeine Content of Food and Drugs
    Caffeine Content of Foods and Drugs Product Serving Size 1 Caffeine (mg) 2 OTC Drugs NoDoz, maximum strength; Vivarin 1 tablet 200 Excedrin 2 tablets 130 NoDoz, regular strength 1 tablet 100 Anacin 2 tablets 64 Coffees Coffee, brewed 8 ounces 135 General Foods International Coffee, Orange Cappuccino 8 ounces 102 Coffee, instant 8 ounces 95 General Foods International Coffee, Cafe Vienna 8 ounces 90 Maxwell House Cappuccino, Mocha 8 ounces 60-65...
    675 Words | 3 Pages
  • Effect of Caffeine on a Basil Plant
    Science Fair Research Paper How Caffeine effects plant growth. I decided to base my project on the effects Caffeine has on plants. I choose three different Basil herb plants and will water them with a little, medium and large amounts of Caffeine to determine the effects that Caffeine has on the plants. What is Caffeine??? Caffeine is found in seeds, leaves and the fruits of some plants, where it acts as a natural pesticide. Humans mostly extract Caffeine from the bean of the coffee plant...
    615 Words | 2 Pages
  • Should caffeine be banned for minors
    Should caffeine be banned for minors? Is caffeine that much of a necessity to minors, if so should it be banned? Caffeine is actually a drug. But In our society this drug is considered safe and people don't really consider it as a drug. This is because most people drink coffee, tea, soft drinks, and all other things that have caffeine. They use this for the boost of energy in the mornings and to go without drowsiness or fatigue during the day. Kids don't really drink coffee which has a lot...
    573 Words | 2 Pages
  • Facts on Caffeine and Soft Drinks
    Facts On Caffeine And Soft Drinks Caffeine is found in coffee beans, tea leaves, cocoa beans, and other plants. Caffeine is a safe ingredient that consumers have enjoyed as part of many of our products for more than 100 years. The beverage industry offers both caffeine-free and caffeinated soft drinks. One of the most studied ingredients Caffeine is one of the most comprehensively studied ingredients in the food supply, with centuries of safe consumption in foods and beverages. In 1958,...
    9,603 Words | 30 Pages
  • Caffeine article analysis - 693 Words
    Article: “Faster but not smarter: effects of caffeine and caffeine withdrawal on alertness and performance Journal: Psychopharmacology Publication Date: 30 October 2012 Is Caffeine Helping or Hindering Your Performance? Have you ever drunk coffee just for the taste? Studies show that that might be just what you’re doing when you take a sip of that bitter beverage. Whether you’re in high school and didn’t get enough sleep between sports and academics, you’re in college and finals are around...
    693 Words | 2 Pages
  • Extraction and Sublimation of Caffeine - 906 Words
     Extraction and Sublimation of Caffeine from Tea Leaves By: Ashley Barnes CH 236 – P8 Experiment 4 & 4.5 Due: 10/15/2014 Table 1. Table of Reagents Discussion The extraction yield refers to the percent of caffeine in the tea leaves at start of the extraction experiment. Tea leaves had 0.55 grams of mass per eight ounce serving. The weight of the extracted crude caffeine was 0.264 grams. Therefore, the extraction yield was 48%. This means that we pulled out almost half of...
    906 Words | 3 Pages
  • The Effect of Caffeine in Human Body
    THE EFFECT OF CAFFEINE ON HUMAN BODY A Term Paper Presented to: Miss. Durano, Leony Marie WESTERN MINDANAO STATE UNIVERSITY MALANGAS CAMPUS MALANGAS ZAMBOANGA SIBUGAY In partial Fulfillment of the Requirements for the course English 102 (Writing in Discipline) Second Semester 2011-2012 Presented by: Mr. Reymonel R. Paler CS – 1 March 2012 Table of Contents I – Introduction ---------------------------------------------------- 1 A....
    6,044 Words | 18 Pages
  • Caffeine Is a Psycoactive Drug
    Have you ever been so tired that you've dozed off at work? Or tried to stop yourself from falling asleep while you're driving or even worse – got caught sleeping in class? These instances could have been prevented by doing what 90% of Americans do every day – by consuming CAFFEINE. If anyone here feels you can't make it though your day without a cup of coffee, you are probably addicted to it (I'll discuss more on that later). Here's an interesting fact: both words caffeine and coffee are derived...
    1,191 Words | 4 Pages
  • Migraines: Serotonin and Caffeine - 724 Words
    Migraine headaches are the result of a disturbance in the neurochemistry of the central nervous system. They are relatively common, affecting three times as many women as men. Migraine sufferers typically report a definite pattern to their headaches, and they can report what stimuli bring them on. Most migraine sufferers experience their first attack before the age of 20. There is no single cause of migraines, but the tendency to get migraines does tend to run in families. When a migraine...
    724 Words | 2 Pages
  • Informative Caffeine Speech - 642 Words
    Introduction: (bring a monster, sip it) alright. How many of you here drink coffee, energy drinks, or soda daily? Well we aren’t alone; according to Villanova Health Service about 90 percent of Americans consume caffeine in one way or another every single day. Transition: So what is caffeine you generally think of it in, Coffee, tea, soda, and chocolate, and its part of almost all college students daily diet. I. Caffeine A. What is caffeine 1. According to the Merriam-Webster...
    642 Words | 3 Pages
  • The Effects of Caffeine on Fish - 967 Words
    S. I. R. (Science Investigation Research) 1 YR – ST. LOUIS OF BERTRAND SUMITTED TO: Leah Ilagan (Integrated Science Teacher) SUBMMITED BY: Agustin, Nathan Raphael DL. Arcaira, John Carlo B. Catuira, Jerrico B. Olalia, Nicolas Andrei Serna, Christian O. Zipagang, Lance Harvey O. PROBLEM: How Caffeine affects a Gold-fish Chapter 1: The Problem and Its Background * Background of the Study * Caffeine is becoming a common chemical found in the...
    967 Words | 5 Pages
  • Informative Speech Caffeine - 893 Words
    Rachel DeLaune CMST 2060 Caffeine Specific Purpose: To inform my audience about the history of caffeine, how the body processes caffeine, and possible side effects of excessive caffeine consumption. Central Idea: Caffeine has been around for centuries and has been used for it energizing effects on the body . Introduction I. It’s the night before your chemistry exam and you decide to learn three weeks worth of material in one night. II. When 1:30 comes around and you can feel your eyes...
    893 Words | 3 Pages
  • Amount of caffeine in team samples
    Determination of Caffeine in Tea Samples CONTENTS 1. 1. Introduction 2. 2. Theory 3. 3. Uses of Caffeine 4. 4. Effects of Caffeine 5. 5. Procedure 6. 6. Observations 7. 7. Result INTRODUCTION Tea is the most commonly and widely used soft beverage in the household. It acts as a stimulant for central nervous system and skeletal muscles. That is why tea removes fatigue, tiredness and headache. It also increases the capacity of thinking. It is also used for lowering body...
    901 Words | 4 Pages
  • Caffeine Informative Speech - 268 Words
    It is known that American runs on caffeine. Caffeine is found in coffee, tea, hot chocolate, soda, chocolate and many medicines. When consumed, caffeine acts as a stimulant, which makes you feel more alert and aware. Many people drink liquids with caffeine because it helps them wake up and feel sharper. There have been many studies claiming caffeine has a positive or negative affect on your body. So what are we, as the consumers, to believe? On the positive side, caffeine contains antioxidants...
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  • The Effect of Caffeine on Body Temperature
    Introduction The aim of this experiment was to determine the effect of caffeine on resting body temperature. This has to do with homeostasis, which is the maintenance of equilibrium. In other words, it is a stable body state. Homeostasis refers to the process of keeping the internal body environment in a steady state, when the external environment is changed (Homeostasis 2). Humans are warm-blooded creatures that generate body heat internally and maintain body temperatures at a fairly constant...
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  • The affect of Caffeine on pulse rate
    Caffeine write up Caffeine is a stimulant Stimulants are a class of drug that boosts, alternates and increases your energy levels and they activity of the nervous system. Caffeine is in drinks, such as; Coca-Cola, tea and coffee, these are called caffeinated drinks. Caffeine is not normally recognised as a drug to most. Caffeine has an effect on your heart rate, (this is how fact your hear beats) Caffeine is able to change the way your body and mind works Chocolate is known...
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  • Caffeine and its effects on the human body
    Over 90% of Americans consume caffeine every day of the year. Caffeine is the ingredient that makes the public crave coffee, soda, chocolate and many other caffeine-carrying products. Americans consume about 45 million pounds of caffeine each year. In the United States, coffee drinkers drink an average of 2.6 cups per day. Total caffeine intake for coffee drinkers was 363.5 mg per day - this includes caffeine from coffee and other sources like soft drinks, food and drugs. Non-coffee drinkers...
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  • Case study - caffeine in the body
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  • Coffee and Caffeine Related Products
    Speech/Outline General Goal: I want to inform my audience Specific Goal: I would like the audience to understand the problems with over consuming the product caffeine. Thesis Statement: there are numerous side effects and health problems associated with caffeine. Caffeine should not be consumed to “energize”. Many often turn to caffeine to help, and doing so will lead you to become addicted to the substance much like a drug and will affect many aspects of your everyday life. Introduction:...
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  • The Effects Of Caffeine On The Heart Rate Of Daphnia
    The Effects of Caffeine on the Heart Rate of Daphnia This lab was designed to show how caffeine affected the heart rate of daphnia after exposing them to different concentrations of caffeine for ten minutes. Caffeine is a stimulant, which, in humans, causes heart rates and blood pressure to increase. Its effects range from mild alertness to heightened anxiety and body tension. We wanted to see if caffeine affected the daphnia's heart rate in the same way. We filled three containers with three...
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  • Isolation of Caffeine from Tea Leaves
    Isolation of Caffeine from Tea Leaves Introduction Caffeine is a member of the class of compounds organic chemists call alkaloids. Alkaloids are nitrogencontaining basic compounds that are found in plants. They usually taste bitter and often are physiologically active in humans. The names of some of these compounds are familiar to you even if the structures aren’t: nicotine, morphine, strychnine, and cocaine. The role or roles these compounds play in the life of the plants in which they are...
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  • Extraction of Caffeine from Tea Leaves
    EXTRACTION OF CAFFEINE FROM TEA LEAVES ABSTRACT Caffeine extraction from the commercial tea leaves (Lipton Yellow Label Tea) that was done is multiple extraction. 4 tea bags were used in the experiment; tea leaves were weighed having 8.5333 grams. The leaves were boiled in a beaker with 150ml of water; the aqueous tea extract was transferred in a seperatory funnel mixed with DCM (20ml), done thrice. The DCM layer was washed with 20ml 6M NaOH in the seperatory funnel; the organic...
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  • Caffeine Extraction from Tea Leaves
    Extraction of Caffeine from Tea Leaves Marc Tugaoen, Kristine Vanzuela, Rafael Villanueva, Justeen Wong Department of Chemistry, University of Santo Tomas, Manila, Philippines Abstract This experiment has been divided into 4 set-ups, first was the solid-liquid extraction, next was the liquid-liquid extraction, then the sublimation and last was the melting point determination. The solid-liquid and liquid-liquid extraction were both done during the first meeting, the DCM layer was filtered...
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  • Extraction of Caffeine from Thea Sinensis
    Extraction of Caffeine from Thea sinensis Abstract Extraction of Caffeine from Thea sinensis main objective is to isolate, purify characterized caffeine from tea leaves. Sublimation technique was used to get the % yield which is 0.07%. The melting point of the standard caffeine with the sublimate is 229°C. Introduction The active ingredient that makes tea and coffee valuable to humans is caffeine. Caffeine is an alkaloid; a class of naturally occurring compounds containing nitrogen and...
    1,695 Words | 6 Pages
  • Extraction of Caffeine from Tea Leaves
    Extraction of caffeine from Lipton tea leaves Maria Gianna Beatrice L. Cancio*, Joe Mari Isabella B. Caringal, Rowena A. Chiang, Patricia Deanne del Valle Department of Biological Sciences, College of Science, University of Santo Tomas, España, Manila, Philippines Abstract Caffeine was extracted from Lipton tea leaves by multiple extraction techniques namely solid to liquid extraction and liquid to liquid extraction; the purification by sublimation and melting point determination....
    2,197 Words | 7 Pages
  • Isolation of Caffeine from Tea Leaves
    Extraction of Caffeine from Lipton® Tea Leaves Nathaniel Camangon*, Kaila Bumagat, Franz Mari Burgos, Remigio Callanta Department of Chemistry, College of Science, University of Santo Tomas, Manila, Philippines Abstract This experiment mainly focuses on the extraction of pure caffeine by multiple extraction from commercially acquired tea leaves and determining its purity by melting point determination. A 0.02% yield of pure caffeine was obtained from 10.4978g of tea leaves (4 tea bags)....
    1,966 Words | 6 Pages
  • Effect of Caffeine on the Heart Rate of Daphnia
    The Effect of Caffeine on Heart Rate Caffeine is made by plants as a way of getting rid of insects. Cocoa is produced in South America, coffee in Africa and tea is produced in Asia have all been used for a very long time to give us a little rush in order to keep us going. Now caffeine is also used as a flavour enhancer in cola and other soft drinks also it has medicinal uses in aspirin preparations and is found in weight-loss drugs and as a stimulant in normal people in everyday...
    1,344 Words | 10 Pages
  • Extraction of Caffeine from Tea Leaves
    Abstract: Caffeine, (C8 H10 N4 O2) a white, crystalline alkaloid known as a nervous system stimulant found commonly in tea leaves and coffee, can be extracted using the method of sublimation with the use of Methylene Chloride (CH2Cl2) and Sodium Hydroxide; both can repeatedly rinse the green (unroasted) coffee beans from the caffeine. Keywords: Caffeine, Methylene Chloride, Sodium Hydroxide, Anhydrous Sodium Sulfate I. Introduction Caffeine is an alkaloid of the methylxanthine family. Its...
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  • Extraction of Caffeine from Tea leaves
    Isolation, purification and characterization of alkaloid caffeine from tea leaves Date Submitted: September 3, 2014 Abstract Caffeine is one of the main constituents of tea leaves. In this experiment, 0.0039 g of pure caffeine was isolated from tea leaves. This was done through solid-liquid extraction followed by multiple liquid-liquid extraction. Then crude material obtained was then purified by sublimation. The isolated caffeine was subjected to thin layer chromatography (TLC)...
    1,976 Words | 8 Pages
  • Caffeine Ruler Reaction Time Test
    Caffeine Ruler Reaction Time Test * OBSERVATION/ASK QUESTION * INTRODUCTION/RESEARCH * HYPOTHESIS * EXPERIMENT/DATA * CONCLUSION Materials
 · Ruler · Paper
 · Pencil
 · Chart ::OBSERVATION:: Those drinking coffee appear to be more alert in class. Does drinking coffee improve mental and physical function? } } { { Can the effects of coffee alter coordination? ::HYPOTHESIS:: Caffeine improves your mental...
    367 Words | 2 Pages
  • Effects of Caffeine After Cardiovascular Exercise
    Introduction The experiment aimed to establish a correlation between caffeine intake and the effects it has on both the pulse and respiration rates of an individual after undergoing moderate-intense cardiovascular exercise. Caffeine itself is one of the most heavily consumed drugs on the planet; it is estimated that over 90% of Americans consume caffeine daily (Richard Lovett, 2005, New Scientist iss. 2518) and is the most widely used stimulant in the world (Arcerio, P, Ormsbee, J, 2009, pg....
    1,577 Words | 6 Pages
  • Extraction of Caffeine from Thea Sinensis
    Extraction of Caffeine from Lipton Yellow Label Teal Leaves Arlie Bamiano, Jealine Bernabe, Petrenne Caimbon*, Jhia Caso Department of Biology, University of Santo Tomas Abstract In order to extract pure caffeine from Lipton Yellow Label tea leaves, several extractions and phase transition techniques were employed to 6.5029 grams of sample. Initially, the tea leaves were boiled in water to extract tea from the leaves (Solid-Liquid Extraction). After extracting the tea, several steps...
    1,592 Words | 7 Pages
  • Effects of Caffeine and Nicotine on Lumbriculus Variegatus
    Effects of Caffeine and Nicotine on Lumbriculus variegatus INTRODUCTION An experiment was conducted to study and explore the circulatory system by exposing Lumbriculus variegatus, black worms, to household drugs. Lumbriculus variegatus was chosen as the experimental organism because of their transparent bodies and their simple physiology. Their transparent bodies help the experimenters to easily see their pulse. Another reason for choosing this specific organism is their body...
    1,795 Words | 5 Pages
  • Extraction of Caffeine from Tea Leaves
    Abstract This work describes the extraction of caffeine from tea leaves to determine its % caffeine. The extraction process selectively dissolves one or more compounds in a mixture into an appropriate solvent. In this experiment, it was visible in the process wherein the components of the tea leaves were dissolved in two solvents, water and dichloromethane (DCM), with DCM used for multiple extractions. The organic layer was evaporated and the determined % caffeine was 0.12%. Furthermore, the...
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  • Extraction of Caffeine from Tea Leaves
    Extraction of Caffeine from Tea Leaves Department of Biological Sciences, College of Science University of Santo Tomas España, Manila, 1028 ABSTRACT: Caffeine is a white crystalline xanthine alkaloid that acts as a stimulant drug. Caffeine is found in varying quantities in the seeds, leaves, and fruit of some plants. It is most commonly consumed by humans in infusions extracted from the seed of the coffee plant and the leaves of the tea bush, as well as from various foods and drinks...
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  • Extraction of Caffeine from Tea Leaves
    Extraction of Caffeine from Tea Leaves Santos, Raphael, Samson, Nonia Carla, *Tabora, Brylle, Tan, Kate Michal Department of Biological Sciences, University of Santo Tomas, Manila, Philippines Abstract Tea leaves are natural products that are harvested from agriculture. Caffeine, on the other hand, is a stimulant that has been shown to speed up the time of reaction, increase alertness, and improve one’s concentration. What we did in this experiment was to extract the alkaloid caffeine...
    631 Words | 3 Pages
  • Extraction of Caffeine from Tea Bags
    Extraction of caffeine from tea bags ABSTRACT Caffeine extraction from the commercial tea leaves (Lipton Yellow Label Tea) that was done is multiple extraction. 4 tea bags were used in the experiment; tea leaves were weighed having 8.5333 grams. The leaves were boiled in a beaker with 150ml of water; the aqueous tea extract was transferred in a seperatory funnel mixed with DCM (20ml), done thrice. The DCM layer was washed with 20ml 6M NaOH in the seperatory funnel; the organic layer was...
    2,408 Words | 7 Pages
  • Regulation of Energy Drinks and Caffeine in India
    Food Safety and Standards Authority of India Proposes Regulation of Energy Drinks, and Caffeine Introduction 1. Energy drinks are non-alcoholic beverages containing caffeine, guarana, glucuronolactone, taurine, ginseng, inositol, carnitine, B-vitamins etc. as main ingredients that act as stimulants. In recent years, a number of different energy drinks have been introduced in the Indian market to provide an energy boost or as dietary supplements. These drinks contain high levels of caffeine...
    3,110 Words | 11 Pages
  • Isolation of caffeine from tea leave
    Date of experiment: September 3rd, 2013 Organic Chemistry II – CHLB330 Name: Symone MoxeyLab Partner: Lynden Cooper Isolation of caffeine from tea leave Abstract:- Introduction:- Caffeine is probably the most commonly used addictive drug. This drug is found in a number of things ingested by people. It belongs to a group of nitrogen bases called purines. Because caffeine possesses these base-like properties, it is described as an alkaloid. They usually taste bitter and often are...
    699 Words | 3 Pages
  • Extraction of Caffeine from Tea Leaves
    Extraction of Caffeine from Tealeaves Perez, Albert Solomon K.*; Quiambao, Marie Angela C;.Pascua, Hanna Harriette R.; Patricio, Maria Roxanne DC.; 2-Chemistry, Department of Chemistry, College of Science University of Santo Tomas España St., 1015, Manila Abstract Caffeine is soluble in both water and organic solvents, solid-liquid extraction and liquid-liquid extraction were used in the experimentation process. Caffeine was extracted using hot water, however, due to...
    1,798 Words | 7 Pages
  • The effect of caffeine on long-term memory
    Psychology Report The effect of caffeine on long-term memory Introduction: What is caffeine? Caffeine is one of the commonly consumed or most ingested stimulant or psychoactive substance in the world, known for it’s effect on vigilance and alertness level (A. Smith, 2002) or at least perceived to jolt our tired brains, when consumed in normal or moderate quantity. Caffeine is available to us from various sources like coffee, tea, cocoa, soft drinks and other such products. Caffeine is...
    1,682 Words | 6 Pages
  • Investigating the Effect of Caffeine on the Heart Rate of Daphnia
    Biology: Practical: Daphnia Heart rate Aim: To investigate Caffeine's effect on the heart rate of Daphnia. Background: Caffeine is a white crystalline, a bitter alkaloid ( C8-H10-N4-O2) usually derived from coffee or tea and used in medicine chiefly as a nervous system stimulant. Generally, Caffeine has been linked to restlessness, anxiety and insomnia. Leading to heart and circulatory disorders. Plants produce caffeine as an insecticide. ( A substance or preparation used for...
    858 Words | 4 Pages
  • Effect of Caffeine Consumption on Academic Performance in College Undergraduates
     Effect of Caffeine Consumption on Academic Performance in College Undergraduates Morgan Bolen, Maria Naula-Quintero, and Carlin Wright Michigan State University Abstract In this study we are interested in assessing the relationship between average amount of caffeine consumed per day and academic performance. We hypothesized that an increase in average caffeine consumed per day would result in increased academic success. A short survey was composed...
    1,741 Words | 5 Pages
  • The Effect of Caffeine on Typing Speed, Accuracy and Heart Beat
    The effect of caffeine on typing speed, accuracy and heart beat 1. Introduction Caffeine is a substance found in coffee, tea and most sodas. When it is consumed, it is a mild stimulant. The energy drink, Monster, contains caffeine, which has the ability to manipulate adenosine (adrenaline), a substance present in the brain that is used to transmit brain signals to different parts of the body. Adenosine causes an increase in alertness and awareness. Modern studies show that there is...
    2,675 Words | 12 Pages
  • Investigate the effect of caffeine on the heart rate of Daphnia
    Investigating the effects of Caffeine on the heart rate of Daphnia Shrimp. Aim: In this experiment we are trying to find out how varying the concentration of caffeine can affect the heart rate of Daphnia shrimp. Prediction: I predict that caffeine will increase the heart rate of the shrimp . Introduction: I believe the results will comply with my prediction. Caffeine is a compound found in especially tea and coffee plants and acts as a natural pesticide. Caffeine is a central nervous...
    1,086 Words | 3 Pages
  • REVIEW OF RELATED LITERATURE ON IMPACTS OF CAFFEINE TO FRESHMEN STUDENTS
    Chapter II REVIEW OF RELATED LITERATURE This chapter presents both foreign and local related literatures relevant to the study. This relevance is shown by the proponents in order to give more reason and understanding of the proposition. Related Literature and Studies Downsides in Caffeine New research from John Hopkins Medical School shows that performance increases due to caffeine intake are the result of caffeine drinkers experiencing a short-term reversal of caffeine withdrawal. In...
    1,461 Words | 5 Pages
  • Caffeine Extraction from Nature's Pride Tea
    Results and Discussion A. Table of Result of Extraction Weight (g) Tea Leaves 5.5783 Crude Caffeine 0.0246 Empty Beaker 117.5350 Beaker + Crude Caffeine 117.5596 The table above shows the weight of the sample tea leaves, the crude caffeine content in the sample, the empty beaker used in the extraction, and the beaker with the crude caffeine. It is induced from there that for that amount of sample tea leaves, which is equivalent to three bags of Nature’s Pride Tea; there is a...
    831 Words | 4 Pages
  • Effect of Caffeine on Athletes During Endurance Sports
    The Effect of Caffeine on Athletes during Endurance Sports Caffeine is a mild stimulant that is found naturally in at least 63 plant species. Caffeine can be found in the leaves, stems, seeds, and roots of these various plants. It is also part of the methylxanthine family. Caffeine consists of a xanthine molecule with three methyl groups attached to it (Wikipedia). Caffeine can be found in many products like sodas, tea, and coffee, but it also occurs in several other products such as...
    1,765 Words | 6 Pages
  • Effect of caffeine, nicotine, alcohol, epinephrine on Daphnia
    03 - 31 - 2006 RESULTS: In this experiment the effect of different hormones on heart rate of _Daphnia_ was examined. It was investigated which substances act as stimulants and which substances act as depressant. Initially, _Daphnia_ was placed on depression slide under the microscope and the average heart rate was determined. Subsequently, _Daphnia_ was treated with different type of hormone and the effect on Daphnia heart rate was observed. It was investigated which substances act as...
    4,396 Words | 31 Pages
  • The Truth About Caffeine How Many Of You Here Consider Yourself Caffeine Addicts
    The Truth About Caffeine How many of you here consider yourself caffeine addicts? How much coffee do you drink in a day? One cup? Two cups? More? How about caffeinated sodas? Caffeine is pervasive in our society these days and every few months we hear about how a study has shown that it is bad for us or good for us. What are we to believe? - See more at: http://www.best-speech-topics.com/sample-informative-speech.html#sthash.KjQRc69h.dpuf Today, I'd like to give you some of the facts about...
    993 Words | 1 Page
  • Literature Review: Caffeine & High-Intensity Power Out-Put
     Nelson Marlborough Institute of Technology Literature Review Caffeine & High-Intensity Power Out-Put Author: 10/16/2013 Diploma in Applied Fitness Exercise Science Table of Contents What are the effects of caffeine on power output during high-intensity performance? 1 Introduction The effect caffeine (CAFF) elicits on sustained endurance performance is well founded (Costill, Dalsky, & Fink, 1978; Graham, & Spriet, 1991; Trice, & Haymes, 1995; Erickson,...
    1,767 Words | 8 Pages


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