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Which of the following is carrying energized electrons produced by the light reactions?Group of answer choicesNADHNADPHNAD⁺NADP⁺chlorophyll bchlorophyll aG3PNext

Question

Which of the following is carrying energized electrons produced by the light reactions?Group of answer choicesNADHNADPHNAD⁺NADP⁺chlorophyll bchlorophyll aG3PNext

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Solution

The molecule that carries energized electrons produced by the light reactions in photosynthesis is NADPH.

Here's a step-by-step explanation:

  1. In the light-dependent reactions of photosynthesis, light energy is absorbed by chlorophyll and other pigments.

  2. This energy is used to excite electrons, which are then transferred along a series of proteins in the thylakoid membrane (a process known as electron transport).

  3. Along the way, the energy from these electrons is used to pump hydrogen ions across the membrane, creating a concentration gradient.

  4. The energy from the flow of hydrogen ions back across the membrane is used to add a phosphate group to ADP, forming ATP.

  5. Meanwhile, the excited electrons are transferred to the molecule NADP+ (nicotinamide adenine

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