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MHT CET Medical202621 April 2026Evening ShiftBiologyRespiration in PlantsActual

Cytochrome C is oxidized by complex IV [cytochrome C oxidase] consisting of----

Options

  1. ACytochrome a and a₃
  2. BCytochrome bC1 and a₃
  3. CFMN
  4. DUbiquinone

Correct answer

A. Cytochrome a and a₃

Step-by-step solution

Complex IV in the electron transport chain is also known as cytochrome c oxidase. It is responsible for the oxidation of cytochrome c and the reduction of oxygen to water. Complex IV consists of cytochromes a and a₃ , along with two copper centers ( Cu_A and Cu_B ). Answer: Cytochrome a and a₃

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