High concentration of NADH inhibits:
Correct answer: A. Pyruvate decarboxylase
- A. Pyruvate decarboxylase
- B. Phosphofructokinase
- C. Glucokinase
- D. Pyruvate phosphatases
Explanation
When excess NADH accumulates, the enzymes that produce NADH from NAD+ will be inhibited. High concentrations of NADH inhibit pyruvate dehydrogenase activity.
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About Bioenergetics
Cellular respiration explains how cells release energy from glucose through glycolysis, the link reaction, Krebs cycle and electron transport chain. It includes ATP production, substrate-level and oxidative phosphorylation, aerobic versus anaerobic respiration, and the roles of mitochondria, oxygen and fermentation in energy transfer.
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