If the central Mg atom is replaced by Fe, the chlorophyll becomes:

Catalase

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Phytochrome

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Cytochrome

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None of the above

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Solution

The correct option is C Cytochrome
Cytochromes are proteins to which one to two tetrapyrrole rings are bound. These tetrapyrroles are very similar to the chromophores of chlorophylls.
However, chlorophylls contain Mg⁺⁺ as the central atom in the tetrapyrrole, whereas the cytochromes have an iron atom.
Cytochromes play an important role in photosynthesis (photophosphorylation) and respiration both.

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Similar questions

M g

M g

M g = 24

2.68 %

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2 g

State true or false with calculations

Chlorophyll contains 2.68% of magnesium by mass.The number of Mg atoms in 3g of chlorophyll is 2.01 × 10²¹atoms.

2.68 %

3.00 g

M g = 24

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