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NEET2026BiologyChapterActual

During the electron transport system (ETS) in mitochondria, which of the following enzyme complexes contains cytochromes a and a₃ along with two copper centres?

Options

  1. ANADH dehydrogenase
  2. BCytochrome bc₁ complex
  3. CCytochrome c oxidase
  4. DATP synthase

Correct answer

C. Cytochrome c oxidase

Step-by-step solution

The electron transport system in mitochondria consists of several enzyme complexes. Complex I is NADH dehydrogenase. Complex II is succinate dehydrogenase. Complex III is cytochrome bc₁ complex. Complex IV is cytochrome c oxidase, which contains cytochromes a and a₃ , along with two copper centres. Complex V is ATP synthase. Answer: Cytochrome c oxidase

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