How many molecules of CO_2 are released durin | vedclass

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(C) In one turn of the Krebs cycle,two molecules of $CO_2$ are released (one during the conversion of isocitrate to $\alpha$-ketoglutarate and one dur

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$4$

Vedclass · Answer

(C) In one turn of the Krebs cycle,two molecules of $CO_2$ are released (one during the conversion of isocitrate to $\alpha$-ketoglutarate and one during the conversion of $\alpha$-ketoglutarate to succinyl-CoA).Since one glucose molecule produces two molecules of acetyl-CoA,the Krebs cycle runs twice for every glucose molecule.Therefore,in two turns of the Krebs cycle,$2 	imes 2 = 4$ molecules of $CO_2$ are released.

How many molecules of $CO_2$ are released during two turns of the Krebs cycle?

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