Question
What is meant by the statement “aerobic respiration is more efficient.”?

Answer

Efficiency of respiration is determined by the production of ATP molecules in the process i.e. energy produced during the process. Since during aerobic respiration, break down of 1 glucose molecule occurs to form approximately 38 ATP molecules and in anaerobic respiration 1 glucose molecule forms only 2 ATP molecules. Therefore, aerobic respiration is more efficient than anaerobic respiration.

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