A - The TCA cycle starts with the condensatio | vedclass

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(C) Assertion $(A)$: The $TCA$ cycle (Tricarboxylic Acid cycle) or Krebs cycle begins with the condensation of the acetyl group $(2C)$ with oxaloaceti

Vedclass · Accepted Answer

$A$ is correct and $R$ is incorrect.

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(C) Assertion $(A)$: The $TCA$ cycle (Tricarboxylic Acid cycle) or Krebs cycle begins with the condensation of the acetyl group $(2C)$ with oxaloacetic acid ($OAA$,$4C$) and water to form citric acid $(6C)$. This reaction is catalyzed by the enzyme citrate synthase. Thus,$A$ is correct.Reason $(R)$: The Krebs cycle takes place in the mitochondrial matrix of eukaryotic cells,not in the cytoplasm. Glycolysis is the process that occurs in the cytoplasm. Thus,$R$ is incorrect.Therefore,the correct option is $C$.

$A -$ The $TCA$ cycle starts with the condensation of Acetyl group with $OAA$ and water to yield citric acid.
$R -$ Kreb's cycle occurs in the cytoplasm of the cell.

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$A -$ The $TCA$ cycle starts with the condensation of Acetyl group with $OAA$ and water to yield citric acid.$R -$ Kreb's cycle occurs in the cytoplasm of the cell.