Magnesium is present in___________________?
Correct answer: B. Chlorophyll
- A. Haemoglobin
- B. Chlorophyll
- C. Hypo solution
- D. None of these
Explanation
Magnesium is the central metal ion in the chlorophyll molecule, where it plays a key role in absorbing light for photosynthesis. Haemoglobin instead contains iron in its porphyrin ring.
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