Question:

Which one of the following is an important component of chlorophyll?

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Magnesium is the central atom in chlorophyll, and it is essential for photosynthesis by absorbing light energy.
Updated On: Apr 19, 2025
  • Mn
  • Mg
  • Fe
  • Zn
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The Correct Option is B

Solution and Explanation

Chlorophyll, the green pigment found in plants, is crucial for the process of photosynthesis. The central atom in chlorophyll is magnesium (Mg), which is coordinated to the porphyrin ring structure. This magnesium ion plays a key role in absorbing light energy during photosynthesis. 

- Mn (Manganese): While manganese is involved in photosynthesis, it is a part of the water-splitting complex in the light reaction, not in the chlorophyll structure. 
- Fe (Iron): Iron is important in electron transport and other enzymatic processes, but it is not the central atom in chlorophyll. 
- Zn (Zinc): Zinc is involved in various enzymatic reactions, but it does not play a role in the chlorophyll molecule. 

Thus, the correct answer is Magnesium (Mg).

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