"Daphnia Heart Rate Vs Substances Lab Report" Essays and Research Papers

  • Daphnia Heart Rate Vs Substances Lab Report

    Juanita Sarmiento Daphnia Ecotoxicology Lab Report Introduction Ecosystems have a way of maintaining themselves under ordinary conditions but when a new factor is added that will most likely threaten the environment action needs to be put forth. Our environment is affected by many pollutants on a daily bases forming a threat to natural stability. For example some of the most polluted parts of the environment are bodies of water like that explained in our lab. Once pollution occurs...

    Body of water, Chemistry, Herb 1022  Words | 3  Pages

  • Lab Report Daphnia

    Temperature on the Heart Rate of Daphnia magna Joseph Ezra Gallo BY124L MW 8:30-11:30 Introduction Ectothermic animals are animals whose body temperature is affected by their surroundings. This means that if the environment is cold the animal will be cold. If the environment is warm the animal will be warm. This is because the animal doesn’t have the capability of regulating its body systems to keep a constant body temperature. When an ectothermic animal is cold, its heart rate will lower. When...

    Absolute zero, Celsius, Concentration 1868  Words | 7  Pages

  • Heart Rate Lab Report

    show the difference in heart rates before and during intense exercise. Aim: The aim of the investigation was to discover how the heart rate varied with the intensity of exercise. The heart rate is a term describing the regularity of the cardiac cycle. The heart rate is the amount of times it contracts (beats) in a unit of time, nearly always per minute. At rest the adult female’s heart rate regulates 75 bpm (beats per minute) but this varies between people. If the heart rate is measured before, during...

    Adenosine triphosphate, Beat Generation, Blood 1103  Words | 4  Pages

  • The Effect of Caffeine 1% and 2% on Daphnia magna’s Heart Rate

    Effect of Caffeine 1% and 2% on Daphnia magna’s Heart Rate Abstract: Ectothermic animals are animals whose body temperature is affected by their surroundings. This means that if the environment is cold the animal will be cold. If the environment is warm the animal will be warm. This is because the animal doesn’t have the capability of regulating its body systems to keep a constant body temperature. When an ectothermic animal is cold, its heart rate will lower. When the animal...

    Beats per minute, Caffeine, Chemistry 1014  Words | 3  Pages

  • Daphnia Lab

    Daphnia and Additives Lab Purpose The purpose of this lab is to test what effect of Nicotine, Acetylcholine, Epinephrine, Caffeine, and Ethanol on an organism’s heart rate. Materials * Microscope * Eye dropper * Pipet * Cotton balls * Depression slide * Beakers * Daphnia * Water * Five additives: Nicotine, Acetylcholine, Epinephrine, Caffeine, Ethanol Procedure 1. Put on safety goggles. 2. Catch a living Daphnia. 3. Transfer to a depression...

    Acetylcholine, Epinephrine, Heart rate 1155  Words | 4  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 killing...

    Caffeine, Chemistry, Dopamine 858  Words | 4  Pages

  • Heart Rate Lab

    Defining the problem and selecting variables In this lab, we will be studying the difference of heart rate between boys and girls. There are many things that can increase heart rate, such as exercise, drinking coffee, taking certain pills, drinking an energy drink, feeling a strong emotion, etc. I have chosen to use exercise as a means of increasing the heart rate of my subjects, more precisely, 20 sit-ups. There are many reasons why your heart rate increases when you exercise, the most important one...

    Boy, Coffee, Exercise 1153  Words | 5  Pages

  • Effect of Caffeine on Heart Rate in Daphnia

    Practical 1.1 Introduction: Caffeine belongs to a class of compounds called methylxanthines and can block a receptor on the surface of heart muscle cells for adenosine. In fact, it is caffeine's blockade of the A1 adenosine receptor in the heart that causes the heart to pound after a significant caffeine dose. Caffeine and similar compounds also inhibit a class of enzymes known as cyclic nucleotide phosphodiesterases. These enzymes are, in part responsible for degrading a stimulatory signal produced...

    Adenosine, Adenosine receptor, Brain 1288  Words | 4  Pages

  • The Effect of Caffeine on the Heart Rate of Daphnia

    As the caffeine concentration rises, so does the mean heart rate of daphnia. Risk Assessment: In this experiment there are the following risks both for the human that carries out the experiment and the daphnia: ← The human that carries out the experiment should be cautious not to touch the lamp with wet hands since it uses electricity. ← Also, be careful not to spill any of the pond water on the floor. ← As for the daphnia, there is a chance for them to die as when they are exposed...

    Beat Generation, Calculator, Chemistry 968  Words | 3  Pages

  • Biology Lab Report on the Effects of Adrenalin on a Daphnia

    different adrenalin concentrations (0.001%; 0.01%; 0.1%) on the daphnia flea. The daphnia was placed on a slide with cover slip in order to examine its heartbeat by using the microscope. Aim In this Lab we will study the effect of different concentrations of adrenalin on the heart rate daphnia, the water flea. It is expected to recognize a threshold of the daphnia in its reaction the three different adrenalin concentrations, in terms of heart rate. Background The endocrine system works with the nervous...

    Adrenal gland, Chemistry, Concentration 1200  Words | 6  Pages

  • How Caffeine Affects the Heart Rate of Daphnia

    IntroductionThe purpose of this experiment is to determine whether or not caffeine has an affect on the heart rate of DaphniaHypothesisThe Daphnia heart rate will increase with the concentration of caffeine. I based my hypothesis on the fact that humans heart rates increase with caffeine as it acts as a stimulant drug. In the experiment there will be several variables that I need to try and control, the temperature of the water is one of these because if the temperature is higher or lower on the...

    Concentration, Count, Daphnia 1134  Words | 4  Pages

  • The Final Draft for Daphnia Lab Report

    Adrenaline on the Heart Rate of Daphnia magna Hieu Duong 6 April 2011 Introduction The heart is a muscular organ that constantly pumps blood throughout the human body. The continuous flow of blood creates a system for vital organs within the body to gain oxygen and nutrients. The timely delivery of oxygen to the body’s organs is very crucial. Brain cells, for example, will die within minutes if the flow of oxygen is obstructed. For the blood to be pumped out of the heart and into the body...

    Cardiac muscle, Chemical reaction, Chemistry 2098  Words | 10  Pages

  • Daphnia Experiment Report

    Daphnia Experiment Report 1. Introduction Caffeine is found in many plant species, where it acts as a natural pesticide. It is found most commonly in cocoa, tea and coffee, but is also artificially added to some soft drinks such as cola to act as a flavour enhancer. When consumed by humans, caffeine works as a stimulant causing amounts of released neurotransmitters to be increased. High use of caffeine has been related with raised blood pressure, restlessness, insomnia and anxiety which, in...

    Caffeine, Experiment, Heart rate 1504  Words | 5  Pages

  • The Effect of Caffiene on Heart Rate

    TITLE: Effect of the caffeine on the heart rate OBJECTIVE: To investigate the effect of the caffeine on the heart rate of living organisms. INTRODUCTION: * Daphnia Daphnia are small, planktonic crustaceans, between 0.2 and 5 mm in length. Daphnia are members of the order Cladocera, and are one of the several small aquatic crustaceans commonly called water fleas because of their saltatory swimming style (although fleas are insects and thus only very distantly related). They...

    Caffeine, Cardiac muscle, Chemistry 1658  Words | 6  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 system...

    Caffeine, Coffea, Coffee 1086  Words | 3  Pages

  • Lab Reports

    lab reports becca Medina Biology Lab 1107 Lab Notebook The Scientific Method Problem: Will a male or female have a higher heart rate after participating in the physical activity of running up three floors of a building? Both students are involved in sports that require physical activity. Hypothesis: We believe that the male would have a lower heart rate after running up the stairs determining that he is in better shape. Materials/Methods: The two students will both run up the same number...

    Carbon dioxide, Cell nucleus, Eukaryote 1091  Words | 4  Pages

  • Heart Rate Lab

    Discussion Heart Rate Our hypothesis stated 1.) The heart rate increases substantially when a person performs a physical activity and 2.) Females have heart rates greater than males’. In this experiment we measured the resting heart rates and exercise heart rates of both the male and females that are in the class. We calculated the results that were taken by each member of each group in the class (6 males and 16 females total). The average resting heart rate for women was 71.8 beats per minute...

    Female, Gender, Heart rate 889  Words | 3  Pages

  • Creatine and Heart Rate: Unhealthy for Humans

    Creatine is a substance used by athletes and bodybuilders to increase the production of Adenosine Triphosphate (ATP), which gives them the energy they need to perform. In this experiment, creatine is added to water and its effects on Daphnia is tested. By observing the heart rate, one can determine if the creatine increases or decreases heart rate. Heart rate was chosen to be measured because one can then see how creatine affects the heart. If it is unhealthy for the Daphnia, it could potentially...

    Creatine, Creatine supplements, Heart rate 1047  Words | 3  Pages

  • lab report

    Erin Arroyo  Lab report June 11, 2013 Biology 123 Professor K Title: Scientific Investigation of the Peroxidase Enzyme & Temperature Abstract:  In this lab we tested the effect temperature has on the rate of enzyme activity. The way we figured this out was by taking four different temperatures and testing the different absorbance levels they produced every 20 seconds for two minutes straight using a spectrophotometer. The important part of this experiment was the temperature...

    Catalysis, Chemical reaction, Chemistry 1725  Words | 8  Pages

  • Daphnia research

    have on the Daphnia magna’s heart rate Results The effect the various drugs caffeine, nicotine and epinephrine had on the Daphnia magna is displayed in Figure 1. After three sample trials were taken there was an average of 180 beats/min-1 ± 6.928 taken under normal conditions. The addition of caffeine caused an increase in the average heartbeat to change to 192 beats/min-1 ± 9.165 in the Daphnia magna tested. When testing the effect of nicotine on the Daphnia magna the average heart beat was 168...

    Branchiopoda, Cardiac arrest, Chemistry 951  Words | 3  Pages

  • daphnia experiment

    effect on the heart rate of daphnia. Daphnia are water fleas that have a sort of heart that we can see in magnification. We can count the number of heart beats in a minute of a regular daphnia and try and get a new one with the same specifications as the old one that may have died. It is also a good idea to get a new one as we want to see how much it affects it from ordinary instead of adding the caffeine one after another. We have to be careful not to feed too much caffeine to the daphnia only a maximum...

    Beat Generation, Concentration, Heart rate 1466  Words | 5  Pages

  • the effect of caffein on heart rate of daphnia

     A-LEVEL BIOLOGY LAB REPORT NAME: NURUL AYUNI BT SABRI GROUP: 11SC4 TITLE: THE EFFECT OF CAFFEINE ON HEART RATE LECTURER : MDM ZAKIAH BINTI ZAKARIA TITLE The effect of caffeine on heart rate OBJECTIVE To determine the effect of caffeine on heart rate of daphnia INTRODUCTION Caffeine, medically known as trimethylzanthine. Its chemical formula is C8H10N4O2. When in pure form, caffeine is a white crystalline powder that taste very bitter. 1The most common...

    Blood vessel, Caffeine, Cardiology 3271  Words | 12  Pages

  • Daphnia: Heart Beat

    Aim: The aim is to investigate the heart beat of the Daphnia per minute and also see the influences that solutions such as coffee and coca-cola has got on its heart beat. The affect of the tempreture on the heart beat is also investigated. Introduction: Daphnias are small tiny small aquatic crustaceans that are cold blooded [ means that their body tempreture would be as same as their environment tempreture ]. Daphnias are between 0.2 mm and 5 mm which means that they could easily be seen...

    Beat Generation, Blood, Caffeine 751  Words | 3  Pages

  • Lab Report

    Lab Report: Toothpickase and Enzymes September 19, 2012 Olivia DePhillips Lab Partner: Joy Morgan Meyers Signature: Introduction Enzymes are biological molecules that catalyze chemical reactions. In enzymatic reactions, the molecules at the beginning of the process, called substrates, are converted into different molecules, called products. Almost all chemical reactions in a biological cell need enzymes in order to occur at rates sufficient for life. Like all catalysts, enzymes work...

    Activation energy, Catalysis, Chemical equilibrium 1017  Words | 4  Pages

  • Bio Lab Report Heart Rate

    Lab 1: Heart Rate Lab (Revised Fall 2010) Lab 1. Heart Rate, Physical Fitness, and the Scientific Method Prelab Assignment Before coming to lab read carefully the following pages on the scientific method and then answer the prelab questions at the end of this lab handout. Be prepared to discuss and/or hand in your responses to the prelab questions at the start of lab. Introduction Biology is a dynamic field of study whose aim is to unravel the mysteries of life itself. Throughout history, humans...

    Empiricism, Experiment, Falsifiability 7309  Words | 24  Pages

  • Biol250 Lab Report Cardio Heart

    Cardiovascular System: The Heart Laszlo Vass, Ed.D. Version 42-0006-05-01 Lab Report Assistant This document is not meant to be a substitute for a formal laboratory report. The Lab Report Assistant is simply a summary of the experiment’s questions, diagrams if needed, and data tables that should be addressed in a formal lab report. The intent is to facilitate students’ writing of lab reports by providing this...

    Artery, Blood, Cardiac anatomy 1300  Words | 5  Pages

  • Yeast Lab Report

    Yeast Lab Report Guidelines 1. Lab reports are to be computer-generated and double-spaced. All sections of the report must be written in paragraph form. 2. Do not use encyclopedias (Internet or otherwise), dictionaries ((Internet or otherwise), or personal web pages as sources for the report, this includes Wikipedia. You may use a textbook, lab manual, and/or article(s) in a published journal. You can find journal articles by going to the library website: http://www.lib.clemson.edu/ and selecting...

    Basal metabolic rate, Citation, Experiment 1408  Words | 4  Pages

  • Daphnia Lab Report

    Investigating the effect of coffee on the heart rate of daphnia Aim: To find out the effect of different caffeine concentrations on heart rate in daphnia Independent variable: • Caffeine concentration Dependent variable: • Daphnia heart rate Controlled variables: • Size of daphnia • Habitat from which the daphnia is obtained • Temperature of the surrounding How the variables can be controlled: • Equally sized daphnia should be used in the experiment • All daphnia should be collected at a same...

    327  Words | 2  Pages

  • Lab Report

    Adwoa Fosuah Bio Psych Lab Report 4 Cold Pressor Task Aim The cold pressor test is done by having the subject submerge their hands in a bucket of cold water to determine cardiovascular changes such as blood pressure and heart rate. For this experiment we wanted to know how long participant can keep their feet in the bucket of ice water before they experience any pain while looking at neutral and positive pictures and also rate the intensity of their pain. For this reason we hypothesized that...

    Arithmetic mean, Mean, Measurement 1310  Words | 4  Pages

  • daphina and coffein effect on its heart rate

    Caffeine effect on Daphnia’s heart rate Prepared for: Androniki Kloni By: Maria Mitsi October 6, 2013 Abstract 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. An experiment was held, on an aquatic...

    Beat Generation, Caffeine, Chemistry 1395  Words | 6  Pages

  • Enzyme Lab Report

    AP Biology Lab: Catalase (Enzymes) Abstract In this laboratory exercise, studies of enzyme catalase, which accelerates the breakdown of hydrogen peroxide into water and oxygen. The purpose was to isolate catalase from starch and measure the rate of activity under different conditions. The laboratory was also conducted in association with a second laboratory that measured the effects of an inhibitor on the enzymes. Changes in temperature and pH along with Substrate Concentration and Enzyme...

    Catalase, Catalysis, Chemical equilibrium 1053  Words | 4  Pages

  • 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 different...

    Affect, Caffeine, Chemistry 485  Words | 2  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...

    Ambulatory blood pressure, Blood pressure, Caffeine 1573  Words | 6  Pages

  • Heart Rate Daphnia

    and access to a healthy culture of Daphnia. Students can readily follow this procedure working in pairs. Because of the variability of results between individual Daphnia it is not appropriate to make conclusions from one set of results, so each pair (or group) of students should carry out more than one investigation to contribute to the class set. One option is to record a live video of a sample Daphnia, during a time period in which students count the heart beats. Then, you can replay the video...

    Blood, Blood vessel, Cardiology 2480  Words | 8  Pages

  • Ans Lab Report

    Measurement of Heart Rate for Autonomic Nervous System Abstract: The Autonomic Nervous System lab was designed to measure reaction times by using a variety of tests that affect the heart rate. These tests were the startle, stroop, Valsalva maneuver, diving reflex, and a test of our choice. The test our group chose to measure the heart rate in response to doing a trust fall to anticipate the stress right before the fall. To begin this lab we chose a participant, and then hooked their finger...

    Acetylcholine, Autonomic nervous system, Enteric nervous system 2183  Words | 6  Pages

  • Formal Lab Report. 10th Grade

    School December 13, 2011 Formal Lab Report Introduction: This lab addresses how people’s metabolism directly affects their performance when faced with a situation that involves exercise for one, and two minutes. Using and understanding Cellular Respiration is something you will need to learn before you can fully grasp this Formal (Lee, Susan. Bio Home. N.p., 15 Feb. 2005. Web. 9 Dec. 2011. <http://biology.clc.uc.edu/courses/bio104/cellresp.htm>.) Lab Report. First of all, you will need...

    Adenosine triphosphate, Carbon dioxide, Cardiology 1663  Words | 5  Pages

  • Cardio Lab Report

    CardioLab Report Full Name || Date | 01/02/2011 | Use this document to report your findings from the CardioLab Exploration Experiment. The lab report consists of three sections: Data, Exploration, and Lab Summary. * Data: copy any data, graphs, charts, or notes that you have saved in your CardioLab online notebook into this section. * Exploration: Answer the questions. The questions in the Exploration section are the same questions in your CardioLab instructions. * Lab Summary:...

    Artery, Blood, Blood pressure 1090  Words | 4  Pages

  • Enzyme Catalysis Lab Report

    Candace S. Randolph MISEP Cohort 2 Chemistry 512 Enzyme Catalysis Lab Report Pre-lab Questions: 1. Write a balanced chemical equation with state symbols for the reaction catalyzed by peroxidase. 2H2O2  2H2O + O2 (4H1 4O)  (4H + 2O + 2O) 2. What is the substrate(s) of this reaction? What is the catalyst? Substrate = H2O2 hydrogen peroxide Catalyst = peroxide 3. At what approximate temperature do enzymes normally operate in the body of a warm-blooded animal? Would your answer change if the enzyme...

    Catalysis, Chemical kinetics, Chemical reaction 1002  Words | 5  Pages

  • Daphnia Experiment

    Caffeine on Daphnia Heart Rate: Aim: To investigate the effect of caffeine on the heart rate in Daphnia. Hypothesis: My hypothesis is that as the caffeine content increases, the heart rate if the Daphnia increases. Equipment: * Culture of water flea – Daphnia * Caffeine of 5 different concentrations * Microscope * Counter * Cavity Slide * Pipettes * Stop clock * Distilled water * Test tubes * Petri dish Method: 1. Remove one Daphnia and place...

    327  Words | 3  Pages

  • Heart Rate

    Heart rate investigation Research statement: To investigate, how diabetes affect a person’s heart rate during physical exercise. Background information: Heart rate : Heart rate is the number of time a persons heartbeats per unit of time, usually measured in BPM (beats per minute). Heart rate is measured by finding the pulse on body, usually taken from carotid artery, which supplies blood to the head and the neck and radial artery, which Is located on your wrist below your thumb ...

    Diabetes mellitus, Digestion, Glucose 881  Words | 4  Pages

  • Lab Report

    Lab report As part of my module Nip1002 I was required to perform a set of observational skills which included; pulse, blood pressure, respirations, hand washing and urinalysis and then compare them to previous results. In this lab report I am going to discuss blood pressure in detail. Procedure * Explain the procedure to the patient and gain consent * Wash hands thoroughly following the hand wash technique to prevent the transfer of bacteria * Clean equipment e.g. blood pressure cuff...

    Artery, Blood, Blood pressure 1016  Words | 4  Pages

  • mechanics lab report

    during the lab session Procedure Part A This lab was performed by the group members as they closed both low and high flow rotameters (Fig-2) and filled the tank with water. Then, the large rotameter was opened when the water in the tank had reached the internal baffle, so the flow from the tank was reduced by doing so. One member was in charge of adjusting the level of the water so it was always maintained over the baffle’s level during the lab (Fig-1). The first part of the lab was done...

    Hebrew numerals 446  Words | 5  Pages

  • Determination of a Rate Law Lab Report

    Determination of a Rate Law Megan Gilleland 10.11.2012 Dr. Charles J. Horn Abstract: This two part experiment is designed to determine the rate law of the following reaction, 2I-(aq) + H2O2(aq) + 2H+I2(aq) + 2H2O(L), and to then determine if a change in temperature has an effect on that rate of this reaction. It was found that the reaction rate=k[I-]^1[H2O2+]^1, and the experimental activation energy is 60.62 KJ/mol. Introduction The rate of a chemical reaction often...

    Celsius, Chemical kinetics, Chemical reaction 1716  Words | 6  Pages

  • The Effects of Population Density on the Reproduction and Survival of Daphnia Magna

    population dynamics of Daphnia magna are observed under three different conditions; low, medium, and high density. The effects of different population densities on the survivorship and reproduction of Daphnia are observed over a two-week period within a lab environment. Over the two week period, the numbers of parent Daphnia alive and dead are recorded daily, along with the amount of offspring produced each day. From the main parameter investigated, the net reproductive rate, the results of the experiment...

    Birth rate, Demographic economics, Demography 2315  Words | 7  Pages

  • To investigate the effect of different caffeine concentration on the heartbeat rate of Daphnia at room temperature.

    To investigate the effect of different caffeine concentration on the heartbeat rate of Daphnia at room temperature. Introduction: Caffeine is found, and produced in many plant species to function as a natural pesticide, and as an inhibitor of seed germination of other nearby coffee seedlings to give it a better chance of survival. Caffeine is able to paralyze and kill certain insects upon feeding on the plants that produce caffeine. Coffee, tea and cocoa are common caffeine-containing...

    Caffeine, Digital microscope, Heart rate 1567  Words | 7  Pages

  • Ekg Lab Report

    Name: Nikia Martinez Class: Biology 240L L3-1201 Assignment: Electrocardiography Lab Report Due: April 3rd 2012 Professor: Dr. B. Schoffstall Introduction In a normal human being the heart correctly functions by the blood first entering through the right atrium from the superior and inferior vena cava. This blood flow continues through the right atrioventricular valve into the right ventricle. The right ventricle contracts forcing the pulmonary valve to open leading blood flow through the...

    Cardiac anatomy, Cardiology, Electrical conduction system of the heart 1813  Words | 6  Pages

  • cardio lab report

    The human cardiovascular system consists of the heart, the blood, and a system of transporting vessels. A human heart has four chambers: a right and left atrium and a right and left ventricle. The fist-sized heart sits in its own sac (the pericardium) in the middle of the chest under the sternum. In most people, the apex of the heart points to the left. There are two circuits of simultaneous blood flow in humans: a pulmonary circuit and a systemic circuit. In the pulmonary circuit, the right...

    Artery, Blood, Blood pressure 1614  Words | 5  Pages

  • Lab Report

    Title Cricket Chirp Rate Lab The Effects of Atmospheric Pressure By Abigail Charpentier E Block Date October 2, 2013 Objective The objective of this study is to determine which environmental factors influence the rate of how fast a cricket chirps, to review and practice the steps of the scientific method, to learn how to use an online computer simulation https://www.gc.maricopa.edu/biology/glacier/scientific_method/ to review and practice constructing data charts and graphs...

    Atmospheric pressure, Chirp, Chirp rate 287  Words | 3  Pages

  • Daphnia Lab Report

    Temperature and Epinephrine on The Heart Rate of Daphnia Leslie Orzetti-Gollhofer Gaby Macias INTRODUCTION The Daphnia is a Crustacean other known as the water flea. It lives in small bodies of freshwater. The Daphnia is ectothermic, meaning it controls its body temperature through external means. With this experiment we experienced first hand what the effect temperature has on a Daphnia’s heart rate. We also experimented what effect epinephrine has on a Daphnia’s heart rate. HYPOTHESIS If we add hot...

    Empiricism, Epinephrine, Experiment 542  Words | 2  Pages

  • Affects of Physical Activity on the Heart Rate And Blood Pressure Lab

    Affects of Physical Activity on the Heart Rate  And Blood Pressure Purpose: The lab prepared will teach you how to measure blood pressure. Learn where systolic and diastolic pressure begins. Next observe venous return, heart rate, and blood pressure in three different scenarios including: normal range, resting rate, and increased exercise.   Research:  In the circulatory system lab, students observed how physical activity affects blood pressure and heart rate. With a partner, one student’s pressure...

    Artery, Blood, Blood pressure 868  Words | 4  Pages

  • DAPHNIA

    HUMAN PHYSIOLOGY REPORT DAPHNIA Aim The aim of this experiment is to investigate the effect of temperature and various substances on the heart beat of Daphnia, a water flea. Introduction Daphnia belongs to a group of small, freshwater crustaceans of the order Cladocera commonly called water fleas. They are very suitable for laboratory studies due to the nature of their transparent exoskeletons. Hence, it is possible to watch Daphnia hearts without dissecting them. Daphnia is ectothermic and...

    Blood, Caffeine, Daphnia 4488  Words | 7  Pages

  • Circulatory System Lab Report

    Heart Rate Report The Circulatory system is an organ system that transports things around the body that are needed by cells. For example: Nutrients, such as: Oxygen, Food and Water. When Blood circulates around the body, it leaves the left ventricle of the Heart and travels to the Aorta (The largest artery in the Human body). The blood that leaves the Aorta is rich of oxygen then travels around the body in arteries, and to the organs. When the deoxygenated blood travels back to the lungs through...

    Blood, Blood vessel, Circulatory system 1347  Words | 5  Pages

  • Cardiovascular Lab Report 2

    Cardiovascular Lab Report Name: Jordan Butler Lab Section: 1 2 Record your data using the tables below. Using your own words, answer the following questions. Pulse Measurement: Observations: Data Table 1. Pulse Location Pulse Rate (beats/min) Radial 68 beats/min Carotid 76 beats/min Popliteal 60 beats/min Data Table 2. Radial Pulse Pulse Rate (beats/min) Sitting 68 beats/min Standing 84 beats/min Post Exercise 104 beats/min 1. What is the definition of a single pulse? —A pressure...

    Blood, Blood pressure, Cardiac cycle 983  Words | 8  Pages

  • Biology Osmosis Lab Report

    Osmosis Lab Report by Evan Gerber Claire Cambron First Lab Report Wednesday 10:30am February 20, 2013 Theresa Gburek Abstract The major objective of the experiment was to test the effect of the concentration gradient on the diffusion rate. It was hypothesized that the greater the stronger the concentration gradient, the faster the rate of diffusion would be. To test this, dialysis tubes were submerged in different concentration fructose solutions. We weighed the tubes at specific...

    Chemistry, Concentration, Diffusion 1887  Words | 6  Pages

  • blood pressure lab report

     Blood Pressure and Pulse Determination National University Bio 202 Human Anatomy & Physiology 2 Lab Report Activity 33A Dr. Alpa Gautam March 6, 2012 Abstract The purpose of the paper is to inform and conduct a laboratory report on human blood pressure and pulse determination. Systolic (contraction) and diastolic (relaxation) pressures refer to the ventricular contraction and relaxation. With knowing the two pressures, one can distinguish if he/she...

    Artery, Blood pressure, Cardiac cycle 1163  Words | 6  Pages

  • Lab Report

    Leila Espinal Grade 8 O.L.C.A. November 20, 2013 Lab Report 1. Problem: To find the density of a Hershey chocolate bar. 2. Hypothesis: I think the chocolate bar will gradually decrease in density as it gets smaller. 3: Materials: 1 whole Hershey chocolate bar, ruler, triple balance beam, tray, calculator. 4. Procedure: First, find the mass, volume, and density of an entire Hershey Bar. Then, systematically, break off one section at a time to calculate...

    Candy, Candy bar, Candy bars 603  Words | 3  Pages

  • Daphnia: Null Hypothesis and Heart Rate

    Effect of caffeine on Daphnia (Water fleas) Introduction- In this study I am going to investigate the effect of caffeine on Daphnia (water fleas) heart rate. I shall use daphnia as they would never have been exposed to caffeine before, unlike a human, who may have already developed a high tolerance to it. Another reason is that Daphnia have a very translucent body; therefore, it is relatively easy to see their heart under a microscope, which makes it easier to count the number of heartbeats...

    Clock, Concentration, Heart rate 480  Words | 2  Pages

  • Lab Report

    Roy Levin Bio 11 Lab Dr.Izquierdo Analysis of Macromolecules in Tissue Homogenates of Bos taurusMaterials and Methods The homogenates provided were made by homogenizing tissues in a sucrose phosphate buffer in a 1:20 ratio. The protein concentration in bovine cells was measured by diluting the homogenate with a 1:5 ratio; 50 microliters of homogenate and 200 microliters of water. Then 5 known protein concentration samples which were 0.4, 0.8, 1.2, 1.6, 2.0 mg/ml of bovine serum were used...

    Carbohydrate, Gel electrophoresis, Glucose 1398  Words | 3  Pages

  • lab report

    Chemical Bonds Lab Report Objective & Introduction: The objective of this experiment was to find more about metallic, ionic, and covalent compounds. To test this you will be checking the melting point, solubility, and conductivity of various substances. A chemical compound is a chemical substance consisting of two or more different chemically bonded chemical elements. The solubility, melting point, and conductivity are all physical properties that could help you determine what type of bonding...

    Atom, Chemical bond, Covalent bond 763  Words | 6  Pages

  • Factors Affecting Reaction Rate Lab Report

    Affecting Reaction Rate Lab Report Objective: To observe and record the different effects of reactants on concentration, surface area, and temperature, on the reaction rates for each. Materials: Refer to the Experiment 18A worksheet Procedure: Refer to the Experiment 18A worksheet Data Table: Mass of 11cm strip of Mg: 0.13g Average mass of 1 cm piece of Mg: 0.0118 Table 1: Effect of Concentration on Reaction Rate Concentration of Acid Reaction Time (s) Reaction Rate (g Mg/s) 0...

    Chemical kinetics, Chemical reaction, Chlorine 772  Words | 4  Pages

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