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Question

Which of the following is an essential component of chlorophyll?

A
Mn
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B
Cu
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C
Mg
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D
Fe
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Solution

The correct option is C Mg
A) Manganese plays a minor role in maintaining the structure of the choloplast.
B) Copper is required for photosynthesis in chloroplasts because it is a cofactor of plastocyanin, an essential electron carrier in the thylakoid lumen.
C) Magnesium is the central atom in the chlorophyll molecule and is structurally very important. Hence, it is the most essential component of chlorophyll.
D) Iron takes part in electron transport during photosynthesis.
So the correct answer is 'Mg'.

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