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Q: Which of the following statements is correct with reference to aerobic respiration?
  • A. The release of energy in aerobic respiration is lower than that in anaerobic respiration.
  • B. In mitochondria, one molecule of pyruvate breaks down to give three molecules of carbon dioxide.
  • C. Only carbon dioxide is released in the process of aerobic respiration.
  • D. Aerobic respiration take places in the absence of oxygen.
Correct Answer: Option B - Respiration involves chemical reactions that breakdown nutrient molecule in dividing cells to release energy. Respiration is basically of two types: (1) Aerobic respiration, and (2) Anaerobic respiration. Aerobic respiration takes place in the presence of oxygen. Most of the reaction in aerobic respiration happen inside Mitochondria where one molecule of pyruvate breaks down to give three molecules of carbon dioxide. The amount of released energy in aerobic respiration is more than that in anaerobic respiration.
B. Respiration involves chemical reactions that breakdown nutrient molecule in dividing cells to release energy. Respiration is basically of two types: (1) Aerobic respiration, and (2) Anaerobic respiration. Aerobic respiration takes place in the presence of oxygen. Most of the reaction in aerobic respiration happen inside Mitochondria where one molecule of pyruvate breaks down to give three molecules of carbon dioxide. The amount of released energy in aerobic respiration is more than that in anaerobic respiration.

Explanations:

Respiration involves chemical reactions that breakdown nutrient molecule in dividing cells to release energy. Respiration is basically of two types: (1) Aerobic respiration, and (2) Anaerobic respiration. Aerobic respiration takes place in the presence of oxygen. Most of the reaction in aerobic respiration happen inside Mitochondria where one molecule of pyruvate breaks down to give three molecules of carbon dioxide. The amount of released energy in aerobic respiration is more than that in anaerobic respiration.