All enzymes of the TCA cycle are found in the | vedclass

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(C) The $TCA$ cycle (Tricarboxylic Acid cycle) or Krebs cycle occurs in the mitochondrial matrix in eukaryotes. Most enzymes of this cycle are soluble

Vedclass · Accepted Answer

Succinate dehydrogenase

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(C) The $TCA$ cycle (Tricarboxylic Acid cycle) or Krebs cycle occurs in the mitochondrial matrix in eukaryotes. Most enzymes of this cycle are soluble and found in the matrix. However, the enzyme $Succinate dehydrogenase$ is an exception. It is an integral membrane protein bound to the inner mitochondrial membrane in eukaryotes, where it functions as Complex $II$ of the Electron Transport Chain $(ETC)$. In prokaryotes, which lack mitochondria, this enzyme is associated with the plasma membrane or found in the cytoplasm.

All enzymes of the $TCA$ cycle are found in the mitochondrial matrix. Exceptionally, one enzyme is located on the inner mitochondrial membrane in eukaryotes and in the cytoplasm in prokaryotes. Identify this enzyme.

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