A common step of aerobic and anaerobic respiration is
Correct answer: A. Glycolysis
- A. Glycolysis
- B. Pyruvic acid oxidation
- C. Krebs cycle
- D. Respiratory chain
Explanation
The correct answer is glycolysis. This is the common pathway for both aerobic and anaerobic respiration and takes place in the cytoplasm of cells. It does not require oxygen and involves the breakdown of glucose into pyruvate, producing a net gain of 2 ATP molecules.Pyruvic acid oxidation, the Krebs cycle, and the respiratory chain are all processes that occur in the presence of oxygen and are parts of aerobic respiration only, making them unsuitable as the common step for both types of respiration.
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