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Questions and Answers
What is the main purpose of dehydrogenation in the glycolysis pathway?
What is the main purpose of dehydrogenation in the glycolysis pathway?
- Regenerate NAD (correct)
- Decarboxylate pyruvate
- Form FAD
- Produce ATP molecules
In anaerobic respiration, what role does pyruvate play in relation to NAD regeneration?
In anaerobic respiration, what role does pyruvate play in relation to NAD regeneration?
- Pyruvate is converted to ethanol without involving NAD
- Pyruvate accepts H atoms from NAD to regenerate it (correct)
- Pyruvate forms CO2 without affecting NAD levels
- Pyruvate generates ATP directly from NAD
What happens to ethanol formed in alcoholic fermentation when oxygen is available again?
What happens to ethanol formed in alcoholic fermentation when oxygen is available again?
- Ethanol is converted back to pyruvate for energy production
- Ethanol directly enters the Krebs cycle for ATP synthesis
- Ethanol accumulates in the cell and can reach toxic levels (correct)
- Ethanol is oxidized to produce NADH
During substrate-level phosphorylation in glycolysis, which process results in the conversion of ADP to ATP?
During substrate-level phosphorylation in glycolysis, which process results in the conversion of ADP to ATP?
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Why is the Krebs cycle essential for aerobic respiration?
Why is the Krebs cycle essential for aerobic respiration?
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What is the main purpose of glycolysis?
What is the main purpose of glycolysis?
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In anaerobic respiration, what serves as the terminal electron acceptor?
In anaerobic respiration, what serves as the terminal electron acceptor?
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What is the process that directly produces ATP without the involvement of the electron transport chain?
What is the process that directly produces ATP without the involvement of the electron transport chain?
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Which of the following is NOT a product of glycolysis?
Which of the following is NOT a product of glycolysis?
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What is a characteristic of alcoholic fermentation?
What is a characteristic of alcoholic fermentation?
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