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Role of Ca, Mg and S

Which element...

Question

Which element is located at the centre of the porphyrin ring in chlorophyll?

A

Calcium

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B

Magnesium

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C

Potassium

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D

Mangnese

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Solution

The correct option is B Magnesium
The chlorophyll molecule comprises of a cyclic tetrapyrrole porphyrin head and a long phytol tail. One atom of magnesium is coordinated to the centre of the tetrapyrrole head.

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