ABSTRACT The effect of co-factor (MgSO₄) and the nature of substrate on the rate of cellular respiration in yeast were determined using two different set-ups. In the first set-up‚ two test tubes were used where one contains 7m and the other with 7 mL 0.2M MgSO₄ and both containing 7mL 10% yeast suspension. Here‚ data shows that the H₂O mixture showed higher amount of CO₂ evolved than MgSO₄. In the second set-up‚ six Smith fermentation tubes were used each containing different 15mL solution (starch
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“Respiration” and “Photosynthesis” All life depends on two chemical reactions “Respiration” and “Photosynthesis”. These two processes are quite crucial because they are a source to nearly all life on Earth. Both of these processes are quite similar yet differentiate vastly. In this essay I’ll be comparing and contrasting “Photosynthesis” and “Respiration”. I’ll start by discussing what actually happens
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Population growth in yeast Aim: To study the population growth rate of yeast‚ a microorganism Saccharomyces cerevesiae Variables: | | Units | Independent variable | Time the readings were taken | Hours | Dependent variable | Absorbance (increasing yeast population) | - | Controlled variables | Units | Possible effects on result | The wave lengths | Nanometer | since the transmission and absorbance is being measured at a specific wave length‚ so if we change it the results
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INTRODUCTION Cellular respiration is a biochemical pathway in which cells produce ATP or energy and carbon dioxide as metabolic waste by breaking down the chemical bonds of food molecules. Cellular respiration is a type of aerobic respiration which needed oxygen in order to produce ATP which occurring in the mitochondria. Meanwhile‚ in the absence of oxygen‚ the cells will undergo anaerobic respiration to produce ATP in the cytoplasm. Anaerobic respiration can be divided into two parts which are
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Discussion The purpose of this experiment was to determine if splitting a bean would affect its rate of respiration. Splitting a bean does not impact its rate of respiration. This is shown in the data‚ while the average rate of respiration for Whole beans is 1.35 and the rate of respiration for 1.16‚ the standard error of the mean is .15. Because the standard error of the mean is so high‚ they overlap in both of the data sets‚ which shows that the data is very similar. This is better shown in the
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proportional to the intense of the respiration process that was taking place (Doltar et al.‚ 249). This means that there was high rate of respiration at a temperature of 30°C test tube as compared with the other three test tubes. The optimum temperature for enzyme activity is usually between 35-37°C (Burchfield‚ 303). At this temperature the enzyme activity is maximum and thus the rate of respiration is very high at this temperature. This is the reason why the rate of respiration was very high at the range
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Bolding_____________ Date________________ Cellular Respiration Webquest Worksheet (from: http://zunal.com/webquest.php?user=19049) Directions: Answer in your own words behind or under the questions. Do not copy and paste unless told to do so and then use quotes. Part I. Process Overview http://staff.jccc.net/PDECELL/cellresp/respintro.html Read the entire page! These questions are not in order! How is cellular respiration like combustion (burning)? [2nd paragraph]
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Goldfish Respiration Abstract The purpose of this experiment is to tests the effects of temperature on the respiration (breathing) rate of goldfish. In order to determine the goldfish respiration change adding small amounts of crushed ice to the water‚ than behavior will be noted. Then‚ the goldfish will experience the same experiment four more times and be noted again. This experiment will be conducted with four students‚ one goldfish‚ a 250 mL and a 150 mL beaker‚ thermometer‚ crushed ice‚
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W0Associate Program Material Cell Energy Worksheet Answer the following questions: Cellular respiration: • What is cellular respiration and what are its three stages? Cellular respiration is a way cells store food and energy‚ a catabolic pathway for the production of adenosine triphosphate (ATP). The cellular respiration happens in both eukaryotic and prokaryotic cells. The three stages are Glycolysis‚ Citric cycle‚ and electron transport. • What is the role
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Bio coursework Methylene blue Yeast cells explanation of respiration hence colour change etc Low temp colour change should be visible as the yeast cells are not necessarily dead‚ just inactive. Activity increases from 20-45 c High rate around 30-40 Starts to slow down basically enzyme curve see bio 1 100 degrees will kill all cells Do a few preliminary keep working down until first blue solution appears in unit of ten Then work to find degree. If more accuracy then half
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