Title of investigation: The effect of solute concentration on osmosis in potatoes. Research question: What is the solute concentration of a potato? Hypothesis: Osmosis is the movement of water across the membrane from an area of high concentration to an area of low concentration. The osmosis continues until the solute concentrations are equal in both areas. In this experiment‚ we put pieces of potatoes into test tubes with sugar solutions of different concentrations and leave them there over night
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LAB 10: NAME: DaeNia La Rodé DATE: 25TH January‚ 2011. FORM CLASS: L6 3 SUBJECT: Biology TITLE: Enzymes AIM: To investigate the effect of substrate concentration on the enzyme amylase INTRODUCTION: Enzymes are perhaps one of the most important proteins of the human body. Enzymes such as amylase‚ an enzyme that breaks down carbohydrates‚ work by means of surface catalysis. In other words‚ the surface of the enzyme enables other molecules to react in a manner they would not be able to without
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* EFFECT OF JUNK FOOD ON HEALTH * JUNK FOOD FACTS * ANALYSIS OF QUESTIONNAIRES * RESULT * QUESTIONNAIRES FILLED BY RESPONDANTS * BIBLIOGRAPHY INTRODUCTION Junk food is typically defined as foods with little nutritional value that are high in calories‚ fat‚ sugar‚ salt‚ or caffeine. It is widely believed that the term was coined by Michael Jacobson‚ director of the Center for Science in the Public Interest‚ in 1972. Common junk foods include salted snack foods‚ gum
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by the concentration of starch‚ or whether the results I got were due to the amounts of solution used. This would make both my results and conclusion invalid and unreliable. I also made sure that the temperature of the water bath was at the correct temperature and I kept on checking the temperature of both my amylase‚ and starch using a thermometer. I made sure both solutions were at the same temperature at all times throughout my experiments‚ so that temperature would not have an effect on my results
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MICROBIOLOGY COURSEWORK The effect of antibiotic concentration on bacterial growth Introduction Null Hypothesis- Increasing the antibiotic concentration has no effect on bacterial growth. Experimental Hypothesis- Increasing the antibiotic concentration decreases bacterial growth. Scientific Theory Bacteria are prokaryotes and can be identified by their shape. Spherical bacteria are called cocci‚ rod shaped bacteria are called bacilli‚ spiral shaped bacteria are called spirilla and
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Measuring the effect of the concentration of caffeine on heartbeats. Caffeine is a stimulant which increases cardiac arrhythmia (improper heart rate) by increasing stress hormone (e.g. adrenaline) secretions. It also increases blood pressure which contributes to the blockage of receptors such as adenosine A1 and A2 receptors. The caffeine blocking receptors also blocks vasodilatory function‚ in which blood vessels become less dilated. Hence wise‚ caffeine is also known as a mild stimulant of the
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Sleep deprivation is a huge problem amongst hundreds of thousands of teenagers across the country. The thousands of teenagers that roll out of bed around 6:30 in the morning‚ after a night filled with extra-curriculars‚ homework‚ and a huge amount of procrastination‚ that usually results in most teens going to bed past midnight. To myself‚ and my peers‚ sleep deprivation has been a major problem‚ and I have failed to perform to my highest abilities due to lack of sleep in the past. Like many other
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Professor Haught October 21‚ 2014 DONT USE YOU Illustration Paper Plan Sheet Part One: Choose a topic for an example paper. Write a thesis statement and then fill in the outline for the paper. Topic: Sleep deprivation is causing problems for many young people. Thesis Statement: Sleep deprivation can cause many problems for young people such as‚ limiting your ability to learn‚ forgetting important information‚ makes you more prone to acne‚ and causing agressive or inappropriate behavior. Outline:
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not alright. Sleep deprivation has its price to pay. Adults need at least 8 hours of sleep in order to stay healthy‚ focused and active. Here are the effects of sleep deprivation which can affect our body and also our surroundings. Our bodies give us plenty of signals when we’re tired. The number of accidents‚ in statics is rising and one of the reasons is because of sleep deprivation. Based on research‚ 1 in 5 motor accidents are caused by fatigue‚ an effect of sleep deprivation that causes weakness
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A moral perseverance Violence and Christianity plays a huge part in today’s modern fiction. In the short story‚ "A Good Man Is Hard To Find" by Flannery O’Connor‚ there is multiple situations that portray violence and Christianity throughout the story. In” A Good Man is Hard to Find” there are many factors that can be the theme. The theme can be about a family as a whole that lacks love for the grandmother‚ or about a family that goes on a trip that wound up having an accident‚ which puts them
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