AP BIOLOGY

Detailed explanation-1: -The ATP yielded in aerobic respiration is about 38 molecules by complete oxidation of a single glucose molecule. On the other hand, anaerobic respiration produces only 2 ATP per glucose molecule. Thus, the most efficient form of respiration is aerobic respiration.

Detailed explanation-2: -Thus, aerobic respiration releases much more energy than anaerobic respiration. The amount of energy produced by aerobic respiration may explain why aerobic organisms came to dominate life on Earth. It may also explain how organisms were able to become multicellular and increase in size.

Detailed explanation-3: -Aerobic respiration is much more efficient, and produces ATP much more quickly, than anaerobic respiration. This is because oxygen is an excellent electron acceptor for the chemical reactions involved in generating ATP.

Detailed explanation-4: -Aerobic respiration is far more energy-efficient than anaerobic respiration. Aerobic processes produce up to 38 ATP per glucose. Anaerobic processes yield only 2 ATP per glucose.

Detailed explanation-5: -Aerobic respiration is 19 times more effective at releasing energy than anaerobic respiration because aerobic processes extract most of the glucose molecules’ energy in the form of ATP, while anaerobic processes leave most of the ATP-generating sources in the waste products.