Glucose is completely broken down only in the:
Correct answer: A. Aerobic respiration
- A. Aerobic respiration
- B. Cellular respiration
- C. Internal respiration
- D. External respiration
Explanation
Aerobic respiration is the correct answer because it is the cellular process where glucose is completely oxidized in the presence of oxygen, yielding maximum ATP. This process includes glycolysis, the citric acid cycle, and oxidative phosphorylation. Cellular respiration, as a term, includes both aerobic and anaerobic processes, and not all of them completely break down glucose. Internal and external respiration refer to gas exchange processes rather than the biochemical breakdown of glucose.
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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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