What are the metabolic pathways of cellular respiration and fermentation, similarities, and differences of the two pathways.
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What are the similarities and differences between aerobic respiration, anaerobic respiration, and fermentation? Provide an explanation for the differences in the types of respiration. (10 points) 2. Briefly describe the differences between glycolysis, TCA cycle (also known as Krebs cycle or Citric acid cycle), and the electron transport chain. State where each pathway occurs in a bacterial cell and in a eukaryotic cell. Include the following terms in your description: glucose, pyruvate, NADH, FADH2, acetyl CoA, ATP synthase, oxaloacetate, proton gradient, substrate level phosphorylation, oxidative phosphorylation, oxygen and citrate. Explain what each component is, where it is found in the pathways and the function for each component. (25 points) 3. What would happen to metabolism in an aerobic cell if the TCA cycle stopped working? Be specific about how metabolism would be impacted. Give examples. (5 points)
Adi S.
What is one way in which fermentation and cellular respiration differ? Fermentation is an anabolic pathway because it creates alcohols and acids as byproducts, whereas cellular respiration is catabolic because it breaks down sugar completely. Pyruvate is the only byproduct of glycolysis during cellular respiration. Fermentation does not utilize pyruvate. NAD+ is only reduced to NADH during cellular respiration but not during fermentation. NADH only donates an electron to the electron transport chain during cellular respiration but not during fermentation. ATP is generated via substrate-level phosphorylation during fermentation only, while cellular respiration generates ATP via oxidative phosphorylation only.
15. Three major pathways are used by cells to gain ATP (energy). These pathways share some characteristics, but also have numerous differences. Fill in the table to help sort out the steps of these processes. This is a very important concept so please ASK if you struggle with this at all. Answer all questions for PROKAYROTIC CELLS. aerobic cellular respiration anaerobic cellular respiration fermentation The reactant for all 3 pathways is glucose, what are the final products? ATP carbon dioxide other product depends on electron acceptor but could be H2SO4, H2NO3, H2S, etc Does it need oxygen to function? Can it occur in the presence of oxygen? What is the final electron acceptor? Other comments you may want to include?
Sri K.
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