to survive and function (Biology Online‚ 2010). Not only does it produce ATP‚ but also carbon dioxide (though decarboxylation)‚ NADH and FADH and in the case of some organisms‚ alcohol. Saccharomyces cerevisia‚ a bacterium commonly known as yeast‚ is used in various aspects of life‚ from winemaking to baking. It respires both anaerobically and aerobically to produce CO2 and alcohol in a process known as fermentation (Barrio‚ 2009). It does this by breaking down the sugars (in the process outlined
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My results and the graph indicate that as you add the caffeine to the daphnia‚ the eart rate of the daphnia increases for example the daphnia’s heartbeat is 120 without caffeine‚ however when caffeine is added it is increased to 168. My graph shows a positive correlation and the error bars are also very small which shows that the results have a small range which suggests that my results are accurate and reliable. I think that the experiment was conducted well however there may be some ethical issues
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Chemical reactions can happen slowly or fast. The speed of the reaction rate can be changed. Some of the factors that can affect the reaction rate are surface area‚ temperature‚ and concentration and pressure. Surface area is the exposed‚ outer layer of a solid. Increased surface area increases reaction rate because more particles on the surface of a solid come in contact with the particles of another substance. For example‚ if you place a donut stick into water‚ the donut will react slowly with
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investigate the effects of temperature on the growth rate pine seedlings. Experiment 1 A batch of 60 pine seedlings (Batch I) was grown in a greenhouse under controlled temperatures. Ten plants were grown at each of six temperatures from 50 C to 300 C. These plants remained at their original temperatures 24 hours each day for two weeks. All other conditions were the same for all seedlings. The growth rates are shown in Table 1. Table 1. Growth rates for pine seedlings in Batch I Experiment II A
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Do Ads Affect Obesity ’s Rate? Name: Nejoom Taher GGU ID: 0571638 Applied Critical Thinking Research Paragraph Instructor: Natalie Barbera Summer 2013 Abstract Obesity rates have been increasing in the recent years which makes people concern about the reasons of it. Despite the fact‚ that many studies indicate there is no direct correlation between obesity and advertising‚ people continue to believe that
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How does the colour of light affect the growth of a plant and which light is best The problem will be investigated is how does colour of light affect the plant growth and what colour is best in terms of speed of the growth of the plant By using the internet I discovered that the problem that I am trying to solve has been done before by various people. As I read the information given off the web it seems that plants that can only absorb certain types of colour of light for example blue or red
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IV.D.2 What’s My Affect Intensity? Indicate the extent to which you agree or disagree with each of the following statements using the response scale below. 1 = Strongly Disagree 2 = Disagree 3 = Neutral 4 = Agree 5 = Strongly Agree 1. I experience my emotions intensely. 2. I feel others’ emotions. 3. I am passionate about causes. 4. I enjoy examining myself and my life. 5. I try to understand myself. 6. I seldom get emotional. 7. I am not easily affected by emotions. 8. I rarely notice my emotional
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One can predict that the tube with the highest concentration of yeast will produce the most carbon dioxide and will have the fastest rate of alcoholic fermentation. Results Two separate experiments were conducted to determine the effect of yeast concentration and pH level on the rate of fermentation. The first experiment involved the placement of different concentrations of yeast‚ glucose‚ and distilled water in four different tubes. Pipette pumps were
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AFFECTING THE RATE OF PHOTOSYNTHESIS. Introduction Photosynthesis is a chemical reaction which takes place inside the green plants (plants with chlorophyll‚ a pigment found in chloroplasts which causes the colour of the plants and it is the main photosynthetic pigment) and light energy is converted into chemical energy. Carbon dioxide‚ water and sunlight is transformed into sugar an oxygen‚ which later will be used as energy for the plant. The chemical equation of photosynthesis is:
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The effects of environmental temperature on respiration rates of mice were observed in this experiment. I hypothesized that when environmental temperature decreased‚ the respiration rate of mice would increase. I predicted that if environmental temperature decreased‚ the respiration rate of mice would increase. The respiration rate of the endotherm was measured using the Qubit/Vernier system and the S152 CO2 gas sensor‚ a device that measured the CO2 concentration in the air. The independent variable
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