Each molecule of pyruvic acid entering the Kr | vedclass

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Question

(B) Before entering the Kreb's cycle,pyruvic acid $(3C)$ undergoes oxidative decarboxylation to form Acetyl-CoA $(2C)$,releasing one molecule of $CO_2

Vedclass · Accepted Answer

$3$ molecules of $CO_2$

Vedclass · Answer

(B) Before entering the Kreb's cycle,pyruvic acid $(3C)$ undergoes oxidative decarboxylation to form Acetyl-CoA $(2C)$,releasing one molecule of $CO_2$. Inside the Kreb's cycle,the Acetyl-CoA $(2C)$ combines with oxaloacetic acid $(4C)$ to form citric acid $(6C)$. During the subsequent steps of the Kreb's cycle,two molecules of $CO_2$ are released through decarboxylation reactions. Therefore,for each molecule of pyruvic acid that enters the cycle (via Acetyl-CoA),a total of $3$ molecules of $CO_2$ are produced ($1$ during the link reaction and $2$ during the Kreb's cycle).

Each molecule of pyruvic acid entering the Kreb's cycle produces:

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