Respiration in Plants

Question

TCA cycle enzymes are located in

  • cristae

  • outer membrane

  • mitochondrial matrix

  • mitochondrial intermembrane space

Answer

C.

mitochondrial matrix

TCA cycle enzymes are soluble proteins located in the mitochondrial matrix space, except for succinate dehydrogenase, which is an integral membrane protein that is firmly attached to the inner surface of the mitochondrial inner membrane, where it communicates directly with components in the respiratory chain.

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