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Which of the following accepts electrons in the light reactions?Group of answer choicesNADHchlorophyll aNADPHG3PNAD⁺chlorophyll bNADP⁺

Question

Which of the following accepts electrons in the light reactions?

Group of answer choices:

  • NADH
  • chlorophyll a
  • NADPH
  • G3P
  • NAD⁺
  • chlorophyll b
  • NADP⁺
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Solution

In the light reactions of photosynthesis, the molecule that accepts electrons is NADP⁺.

Here's a step-by-step explanation:

  1. Light reactions begin when photons hit the chlorophyll molecules in the thylakoid membrane of the chloroplasts.
  2. This energy excites electrons in the chlorophyll, causing them to jump to a higher energy level.
  3. These high-energy electrons are then transferred along a series of proteins known as the electron transport chain.
  4. At the end of this chain, the electrons are accepted by NADP⁺, which also picks up a proton (H⁺) to form NADPH.
  5. NADPH then carries these high-energy electrons to the next stage of photosynthesis, the Calvin cycle.

So, the correct answer is NADP⁺.

This problem has been solved

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