How many substrate-level ATP (or GTP) molecul | vedclass

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(C) In the Krebs cycle,the conversion of $\alpha$-ketoglutaric acid to succinyl-$CoA$ is catalyzed by the $\alpha$-ketoglutarate dehydrogenase complex

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(C) In the Krebs cycle,the conversion of $\alpha$-ketoglutaric acid to succinyl-$CoA$ is catalyzed by the $\alpha$-ketoglutarate dehydrogenase complex,which produces $NADH$. Subsequently,succinyl-$CoA$ is converted into succinic acid by the enzyme succinyl-$CoA$ synthetase. This specific step involves substrate-level phosphorylation,where one molecule of $GDP$ (or $ADP$) is phosphorylated to form one molecule of $GTP$ (or $ATP$). Therefore,$1$ molecule of substrate-level $ATP$ is synthesized during this conversion.

How many substrate-level $ATP$ (or $GTP$) molecules are synthesized when $\alpha$-ketoglutaric acid is converted into succinic acid in the Krebs cycle?

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