The number of substrate level phosphorylation | vedclass

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(C) In the citric acid cycle (Krebs cycle),substrate-level phosphorylation occurs during the conversion of succinyl-CoA to succinate. This reaction is

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(C) In the citric acid cycle (Krebs cycle),substrate-level phosphorylation occurs during the conversion of succinyl-CoA to succinate. This reaction is catalyzed by the enzyme succinyl-CoA synthetase. During this step,one molecule of $GDP$ (or $ADP$) is phosphorylated to form $GTP$ (or $ATP$). Therefore,there is exactly one substrate-level phosphorylation per turn of the citric acid cycle.

The number of substrate level phosphorylations in one turn of citric acid cycle is

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