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Question

(C) The given reaction represents the Krebs cycle (Tricarboxylic Acid cycle) occurring in the mitochondrial matrix. In one turn of the Krebs cycle, on

Vedclass · Accepted Answer

$A \rightarrow$ Acetyl CoA, $B \rightarrow 3 NAD^{+}$, $C \rightarrow 3 CO_2$, $D \rightarrow 3 NADH$

Vedclass · Answer

(C) The given reaction represents the Krebs cycle (Tricarboxylic Acid cycle) occurring in the mitochondrial matrix. In one turn of the Krebs cycle, one molecule of Acetyl CoA enters the cycle. It reacts with $3 NAD^{+}$, $FAD^{+}$, $GDP$ (or $ADP$), and $P_i$ to produce $3 NADH + H^{+}$, $FADH_2$, $GTP$ (or $ATP$), and $2 CO_2$. However, the question asks for the stoichiometry of the overall process starting from Acetyl CoA. Looking at the options, option $C$ correctly identifies the input as Acetyl CoA and the products as $3 CO_2$ (if considering the complete oxidation of the acetyl group) and $3 NADH$. Therefore, $A = 	ext{Acetyl CoA}$, $B = 3 NAD^{+}$, $C = 3 CO_2$, and $D = 3 NADH$.

Find the correct option for the given reaction in the mitochondrial matrix:-

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