Match the following concerning essential elements and their functions in plantsColumn-IColumn-II(a)

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Question

Match the following concerning essential elements and their functions in plantsColumn-IColumn-II(a) Iron(i) Photolysis of water(b) Zinc(ii) Pollen germination(c) Boron(iii) Required for chlorophyll biosynthesis(d) Manganese(iv) IAA biosynthesis

Accepted Answer

Correct Answer: B — (a)-(iii), (b)-(iv), (c)-(ii), (d)-(i)Solution:(a) Iron: Essential for the biosynthesis of chlorophyll (though not a constituent of the chlorophyll molecule itself, it is required for the enzymes involved in its synthesis). → (iii)(b) Zinc: Required for the synthesis of indole-3-acetic acid (IAA), the primary natural auxin, by activating the enzyme tryptophan synthase. → (iv)(c) Boron: Essential for pollen germination, pollen tube growth, cell wall synthesis, and sugar transport. → (ii)(d) Manganese: Activates enzymes of the oxygen-evolving complex (OEC) associated with Photosystem II, which is responsible for the photolysis of water and O2 evolution. → (i)Key Concept: Micronutrients and their roles: Fe (chlorophyll biosynthesis, electron carriers), Zn (auxin synthesis, enzyme activator), B (pollen germination, cell wall), Mn (photolysis of water in PS-II), Mo (nitrogenase, nitrate reductase), Cu (plastocyanin in photosynthesis). Deficiency of Fe leads to interveinal chlorosis; B deficiency causes death of shoot apex.

Match the following concerning essential elements and their functions in plantsColumn-IColumn-II(a) Iron(i) Photolysis of water(b) Zinc(ii) Pollen germination(c) Boron(iii) Required for chlorophyll biosynthesis(d) Manganese(iv) IAA biosynthesis

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Match the following concerning essential elements and their functions in plantsColumn-IColumn-II(a) Iron(i) Photolysis of water(b) Zinc(ii) Pollen germination(c) Boron(iii) Required for chlorophyll biosynthesis(d) Manganese(iv) IAA biosynthesis

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