PHYSIOLOGY
MUSCLE ENERGETICS GLYCOLYSIS
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Question
[CLICK ON ANY CHOICE TO KNOW THE RIGHT ANSWER]
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Reaction to convert phosphoenolpyruvate to pyruvate is highly exergonic that produces
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ATP
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GTP
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Water
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Carbon dioxide
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Explanation:
Detailed explanation-1: -The enzyme pyruvate kinase couples the biologically irreversible, exergonic hydrolysis of a phosphate from PEP and transfer of the phosphate to ADP in a coupled reaction.
Detailed explanation-2: -Cytosolic pyruvate kinase catalyzes the transfer of a high-energy phosphate from phosphoenolpyruvate to ADP, forming pyruvate and ATP. This reaction, an instance of substrate-level phosphorylation, is essentially irreversible under physiological conditions.
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