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Excited by light energy, the pair of chlorophylls in this structure donates an electron to the primary electron acceptor, which passes an electron to an electron transport chain.Group of answer choicesNAD⁺/NADHlight-harvesting complexreaction-center complexphotosystemprimary electron acceptorrubisco

Question

Excited by light energy, the pair of chlorophylls in this structure donates an electron to the primary electron acceptor, which passes an electron to an electron transport chain.Group of answer choicesNAD⁺/NADHlight-harvesting complexreaction-center complexphotosystemprimary electron acceptorrubisco

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Solution

The structure you're referring to is the reaction-center complex. Here's the step-by-step process:

  1. Light energy is absorbed by the chlorophyll in the reaction-center complex of the photosystem.
  2. This energy excites an electron in the chlorophyll, causing it to be released.
  3. The released electron is then captured by the primary electron acceptor.
  4. The primary electron acceptor then passes the electron onto the electron transport chain.

So, the answer to your question is the reaction-center complex.

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