Phosphofructokinase is inhibited by:
Correct answer: C. High concentration of ATP
- A. High concentration of NADH
- B. Low concentration of citrate
- C. High concentration of ATP
- D. Pyruvate decarboxylase
- E. Increase in Pyruvate
Explanation
Phosphofructokinase is inhibited by high concentrations of ATP, which signals that the cell has ample energy, reducing the need for further glucose breakdown.
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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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