PHYSIOLOGY
MUSCLE ENERGETICS GLYCOLYSIS
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Question
[CLICK ON ANY CHOICE TO KNOW THE RIGHT ANSWER]
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phospho glyceric acid forms phospho enol pyuruvic acid by
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Enolase
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Aldolase
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Dehydrogenase
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Kinase
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Explanation:
Detailed explanation-1: -PEP is formed by the action of the enzyme enolase on 2-phosphoglyceric acid. Metabolism of PEP to pyruvic acid by pyruvate kinase (PK) generates adenosine triphosphate (ATP) via substrate-level phosphorylation. ATP is one of the major currencies of chemical energy within cells.
Detailed explanation-2: -During step [9] the enzyme enolase reacts with 2-phosphoglycerate to form phosphoenolpyruvate (PEP), water being lost from 2-phosphoglycerate in the process. Phosphoenolpyruvate acts as the second source of ATP in glycolysis.
Detailed explanation-3: -Phosphoenolpyruvate is converted to pyruvate by pyruvate kinase. This step involves the transfer of a phosphate molecule to ADP to form 1 molecule of ATP.
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