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Chlorosis is produced in leaves due to deficiency of FeMgMnN or S Of these

Chlorosis is produced in leaves due to deficiency of Fe,Mg,Mn,N or S. Of these essential elements those are exclusive constituents of chlorophyll molecules are

Options

(a) Fe and S
(b) N and S
(c) Mg and S
(d) Mg and N

Correct Answer:

Mg and N

Explanation:

Chlorophyll molecules has a complex porphyring ring (head) to which is attached a long hydrophobic phytol(C₂₈H₃₉) chain(tail).Prophyrin is a cyclic tetrapyrrole, made up of four nitrogen containing pyrrole rings arranged in a cyclic fashion.Pyrrole rings are linked by methine(-CH=) bridges.In the central position of tetrapyrrole ring,the magnesium atom is present.

AMU1998
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