SCIENCE
RESPIRATION
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Question
[CLICK ON ANY CHOICE TO KNOW THE RIGHT ANSWER]
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Aerobic respiration results in less energy.
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Each process results in equal amounts of energy.
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Aerobic respiration results in more energy.
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Each process results in variable amounts of energy.
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Detailed explanation-1: -This releases only enough energy to make two ATP molecules. With oxygen, organisms can break down glucose all the way to carbon dioxide. This releases enough energy to produce up to 38 ATP molecules. Thus, aerobic respiration releases much more energy than anaerobic respiration.
Detailed explanation-2: -Aerobic respiration produces more usable chemical energy in the form of ATPs than fermentation because aerobic respiration involves the complete oxidation of glucose and the release of carbon dioxide and water as end products.
Detailed explanation-3: -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-4: -So fermentation produces energy, however, it is 16 times less efficient than cellular respiration. Overview of ethanol fermentation. One glucose molecule breaks down into two pyruvates (1). The energy from this exothermic reaction is used to bind inorganic phosphates to ADP and convert NAD+ to NADH.
Detailed explanation-5: -Fermentation produces relatively less energy than respiration, because fermentation does not result in the complete oxidation of glucose.