Lab 6: Fermentation Introduction All heterotrophs go through the process of cellular respiration in order to make energy. To obtain the most energy per glucose cellular respiration is done by aerobic cellular respiration‚ but when no Oxygen is present fermentation is used. Fermentation is the anarobic process that most organisms and fungi use. It involves the breakdown of glucose into alcohol if no Oxygen is present. CO2 is also produced during this cycle. Temperature and environment can affect the
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Benjamin Tiger1/16/12 Cellular Respiration Questions 1. Aerobic pathways require oxygen‚ while anaerobic pathways don’t. Anaerobic pathways only require the process of glycolysis to produce energy. Anaerobic pathways are found outside the mitochondria within the cytoplasm of the cell‚ with a low efficiency of 4%. These pathways require glucose‚ ATP‚ adolase‚ fructokinase‚ dehydrogenase‚ and NAD+. Out of one glucose molecule‚ major products include two net ATP‚ two NADH‚ and two pyruvate
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Yeast Population Dynamics Lab How Environmental Factors Affect a Yeast Population’s Ability to Reproduce OBJECTIVE The objective of this experiment is to emphasize the influence that limiting factors have on a population. This lab tests yeast‚ a common component in baking‚ against two environmental factors (changes in temperature or concentration) to see what effect these have on the population dynamics of the yeast over a period of 72 hours. There are two sections of tests included in this
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An observation was made on whether or not the sugars‚ fructose and ribose would be fermented in yeast (Saccharomyces cerevisiae). By looking at the chemical structures of these sugars given in (Figure 1)‚ we looked for anything that might determine the metabolization of these sugars. An equal 6mL (milliliter) sample of 2.5% fructose and yeast suspension was pipetted into a fermentation tube. The same procedure above was performed with the sugar ribose which has a concentration of 2.5% as well
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the Aboriginals have been fighting for the survival of their culture. The Aboriginals haven been take in and dominated to bring them in line with an idealistic European society. These themes have been put forward by Jack Davis in his stage play‚ No Sugar‚ the story of an Aboriginal family’s fight for survival during the Great Depression years. Admittedly Davis utilises his characters to confront the audience and take them out of their comfort zone‚ showing them the reality of Aboriginal treatment.
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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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Determining the rate of Cellular Respiration Using Germinating and Dry Peas Purpose: To determine the rate of cellular respiration using dry and germinating peas. Introduction: In this lab‚ we are investing cellular respiration‚ specifically aerobic cellular respiration. Aerobic cellular respiration is the process by which cells consume oxygen during the oxidation of glucose and produce CO2 as a byproduct. During cellular respiration‚ glucose is split into a 6 carbon sugar‚ G3P through the use of 2 ATP
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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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