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MHT CET Medical202626 April 2026Morning ShiftBiologyRespiration in PlantsActual

What is the site of Krebs cycle in mitochondria?

Options

  1. AMatrix
  2. BOuter membrane
  3. COxysomes
  4. DCristae

Correct answer

A. Matrix

Step-by-step solution

The Krebs cycle, also known as the citric acid cycle or tricarboxylic acid (TCA) cycle, occurs in the mitochondrial matrix. The mitochondrial matrix contains all the necessary enzymes for the Krebs cycle, except for succinate dehydrogenase, which is located in the inner mitochondrial membrane. The outer membrane is involved in the transport of molecules. Oxysomes (F0-F1 particles) are present on the inner mitochondrial membrane and are involved in ATP synthesis. Cristae are the infoldings of the inner mitochondrial

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