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Aerobic respiration is an enzymatically controlled release of energy in a stepwise catabolic process of complete oxidation of organic substrate into CO₂ and H₂O with O₂ acting as the terminal oxidant.

1. Aerobic respiration is an enzymatically controlled release of energy in a stepwise catabolic process of complete oxidation of organic substrate into CO₂ and H₂O with O₂ acting as the terminal oxidant.
2. Aerobic respiration is an enzymatically controlled release of energy in a stepwise catabolic process of partial oxidation of organic substrate into CO₂ and H₂O with O₂ acting as the terminal oxidant.
3. Aerobic respiration is an enzymatically controlled release of energy in a stepwise catabolic process of complete oxidation of organic substrate into CO₂ and H₂O without O₂ acting as the terminal oxidant.
4. Aerobic respiration is an enzymatically controlled release of energy in a stepwise catabolic process of partial oxidation of organic substrate into CO₂ and H₂O without O₂ acting as the terminal oxidant.

Correct answer: Aerobic respiration is an enzymatically controlled release of energy in a stepwise catabolic process of complete oxidation of organic substrate into CO₂ and H₂O with O₂ acting as the terminal oxidant.

Solution

Aerobic respiration fully oxidizes organic molecules, producing CO₂ and H₂O, and uses oxygen as the final electron acceptor. That combination matches the definition of aerobic respiration exactly.

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