The element whose electrons are excited during light reactions of photosynthesis is _.
Correct answer: C. Magnesium
- A. Carbon
- B. Hydrogen
- C. Magnesium
- D. Nitrogen
Explanation
Magnesium has two electrons in its outer shell, so it has a tendency to lose them. When light falls on chlorophyll, the two electrons of magnesium are excited, and they jump to a higher state where the primary electron acceptor absorbs them. Hence, option C is the correct option.
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