ATP is best defined as:
Correct answer: D. The molecule that releases energy when the phosphate molecule is removed
- A. The molecule that has no role in muscle contraction
- B. The molecule that releases energy when a phosphate molecule is added
- C. The molecule that is only present inside the nucleus
- D. The molecule that releases energy when the phosphate molecule is removed
Explanation
The molecule that releases energy when the phosphate molecule is removed - Correct. ATP releases energy when hydrolyzed to ADP by removing a phosphate group.
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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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