Question
Chlorosis is produced in the leaves due to the deficiency of Fe, Mg, Mn, S or N of these essential elements, those that are exclusive constituents of chlorophyll molecule are
Fe, S
N,S
Mg, S
Mg, N
Solution
D.
Mg, N
Magnesium is present in the central position of tetrapyrrole ring of the chlorophyll molecule. Porphyrin is a cyclic tetrapyrrole ring made up of four nitrogen-containing pyrrole rings arranged in a cyclic fashion in the chlorophyll molecule.
