What happens to the electrons as they pass through the electron transport chain?

What happens to the electrons as they pass through the electron transport chain?
  1. They are used up.
  2. They are transferred to NADP⁺.
  3. They are excited when they receive red light of 700 nm.
  4. They are passed on.

Solution

The electrons are not used up as they pass through the electron transport chain but are passed on to the pigments of photosystem PS I.

Asked in: NCERT

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