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NTA Abhyas NEET2020BotanyRespiration in PlantsPractice

In an electron transport chain, the cytochrome which donates electrons to O 2 is

Options

  1. ACytochrome b
  2. BCytochrome c
  3. CCytochrome a 3
  4. DCytochrome a

Correct answer

C. Cytochrome a 3

Step-by-step solution

Cytochrome a 3 is the terminal cytochrome of ETC. It has Fe +3 and Cu +2 both. With Fe +3 , it picks up electrons and through Cu +2 , it passes electrons to oxygen.

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