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What does phosphoglycerate mutase catalyze the conversion of?

1) 1,3-bisphosphoglycerate to 3-phosphoglycerate
2) 3-phosphoglycerate to 2-phosphoglycerate
3) 2-phosphoglycerate to 1,3-bisphosphoglycerate
4) 1,3-bisphosphoglycerate to 2-phosphoglycerate

1 Answer

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Final answer:

Phosphoglycerate mutase catalyzes the conversion of 3-phosphoglycerate to 2-phosphoglycerate by transferring a phosphate group within the molecule during glycolysis.

Step-by-step explanation:

Phosphoglycerate mutase catalyzes the conversion of 3-phosphoglycerate to 2-phosphoglycerate. This enzyme is a mutase, which means it catalyzes the transfer of a functional group within a molecule. Specifically, this transfer is of a phosphate group within the molecule of 3-phosphoglycerate, moving it from the third carbon to the second carbon, hence creating 2-phosphoglycerate. This step is crucial in the process of glycolysis, where it preludes the dehydration reaction catalyzed by the enzyme enolase.

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