Identify the steps where ATP is consumed in glycolysis:
Correct answer: B. F6P → F1,6BP
- A. G6P → F6P
- B. F6P → F1,6BP
- C. G3P → 1,3-BPG
- D. 1,3-BPG → 3-PG
Explanation
ATP is consumed twice - once during Glucose → G6P (hexokinase) and once during F6P → F1,6BP (PFK-1). The question targets the second ATP-consuming step.
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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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