LABORATORY REVIEW
CELL RESPIRATION
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Question
[CLICK ON ANY CHOICE TO KNOW THE RIGHT ANSWER]
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Oxidative level phosphorylation ( chemiosmosis)
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substrate-level phosphorylation
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Detailed explanation-1: -Oxidative phosphorylation is the fourth step of cellular respiration, and produces the most of the energy in cellular respiration.
Detailed explanation-2: -Electron Transport System generates 32 or 34 ATP molecules and is the cell’s main source of energy. Thus, the electron transport system produces the most ATP in cellular respiration.
Detailed explanation-3: -Although chemiosmosis accounts for over 80% of ATP made during glucose breakdown in cellular respiration, it’s not unique to cellular respiration. For instance, chemiosmosis is also involved in the light reactions of photosynthesis.
Detailed explanation-4: -Chemiosmosis is the method through which ATP is produced during cellular respiration. Chemiosmosis is the movement of protons from the inner to the outer compartment of mitochondrial membranes via specific channels.
Detailed explanation-5: -ATP Production Finally, 26 or 28 ATP are produced in the electron transport chain through oxidative phosphorylation, depending on whether NADH or FADH2 is used as the electron carrier.