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Question

Both respiration and photosynthesis require
  1. Sunlight
  2. Green cells
  3. Cytochromes
  4. Organic substrate

A
Sunlight
B
Green cells
C
Cytochromes
D
Organic substrate
Solution
Verified by Toppr

Both respiration and photosynthesis require cytochromes as these are the haem bound proteins that help in electron transfer also called electron transfer agents that help in the release of energy which is obtained in the form of energy.
So the correct option is 'Cytochromes'.

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