| (i) Activator of catalase. |
| (ii) Important constituent of cytochrome. |
| (iii) Important constituent of proteins involved in ETS. |
| (iv) Essential for chlorophyll synthesis. |
A) Mo
B) Fe
C) Cu
D) Ca
Correct Answer: B
Solution :
[b] Iron (Fe) is involved in the transfer of electrons like ferredoxin and cytochromes. During electron transfer, it is reversibly oxidised from \[F{{e}^{2+}}\]to \[F{{e}^{3+}}\] It activates catalase enzymes and is essential for the formation of chlorophyll.
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