Which of the following ions of heavy metals participate in process of photosynthesis in higher plants

Options

A. Pb, Fe, Ni, Co
B. Mg, Zn, Cu, Hg
C. Mg, Mn, Co, Fe
D. Mg, Cu, Mn, Fe

Answer

D

Explanation

* Magnesium : It activates several enzymes involved in photosynthesis.
* Copper : It is reversibly oxidized form `Cu^+` to `Cu^(2+)` during electron transport.
* Manganese : Manganese plays a major role in the splitting of water to liberate oxygen during photosynthesis.
* Iron : Important constituent of a protein involved in the transfer of electrons like ferredoxin and cytochrome. It is reversibly oxidized from `Fe^(2+)` to `Fe^(3+)` during electron transfer in photosynthesis.