The electron transport chain in mitochondria is used to:
Correct answer: D. Create proton gradient
- A. Synthesize NADP+
- B. Synthesize ADP
- C. Create electron gradient
- D. Create proton gradient
Explanation
The electron transport chain in mitochondria creates a proton gradient across the inner mitochondrial membrane. This gradient is crucial for ATP synthesis via ATP synthase in a process called oxidative phosphorylation.
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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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