How are aerobic respiration and fermentation different?What is the function of NAD+ and FADH in cellular respiration?What are the 3 main stages in aerobic cellular respiration?List four products of glycolysis.How is pyruvate modified before entering the citric acid cycle?Why is the citric acid cycle called a cycle?List four different products of citric acid cycle.Which of the three main stages of aerobic cellular respiration provides the biggest payoff of ATPs, and about how many ATPs from one glucose during this stage?In the absence of sugar, what else can cells use to produce ATP?

Question
Asked Sep 11, 2019
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  1. How are aerobic respiration and fermentation different?
  2. What is the function of NAD+ and FADH in cellular respiration?
  3. What are the 3 main stages in aerobic cellular respiration?
  4. List four products of glycolysis.
  5. How is pyruvate modified before entering the citric acid cycle?
  6. Why is the citric acid cycle called a cycle?
  7. List four different products of citric acid cycle.
  8. Which of the three main stages of aerobic cellular respiration provides the biggest payoff of ATPs, and about how many ATPs from one glucose during this stage?
  9. In the absence of sugar, what else can cells use to produce ATP?
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Expert Answer

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Hi! You seem to have uploaded many questions. So, as per the policy we will be answering first 3 questions.

 

The difference between aerobic respiration and fermentation is as follows:

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Aerobic respiration Fermentation Oxygen is used for deriving energy. Occurs mainly in higher organisms. Oxygen is not required in the process Occurs mainly in microorganisms. Site of occurrence is cytoplasm Site of occurrence is the cytoplasm and mitochondria The final products synthesised are ethyl alcohol and CO2 End products are CO2 and water. Complete oxidation of the respiratory substrate takes place Incomplete oxidation of the respiratory substrate. Type of phosphorylation involved is both oxidative and substrate-leve | phosphorylation Final electron acceptor is molecular oxygen Only substrate-level phosphorylation occurs during fermentation Final electron acceptor: organic molecule such as pyruvic acid Only 2 molecules of ATPS are generated. About 36 molecules of ATPS are produced.

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Answer 2

NAD+ and FADH, picks up the electron from glucose and pyruvate, gets reduced to NADH and FADH2. They act as an electron carrier ...

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