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AIIMS 201925 May

Exam: AIIMS
Year: 2019
Date: 25 May
Subject: Botany
Chapter: Mineral Nutrition

AIIMS 2019 · 25 May · Botany · Mineral Nutrition

Which group includes all micronutrients?

Which group includes all micronutrients?

Options

A $\mathrm{Mn}, \mathrm{Zn}, \mathrm{Fe}, \mathrm{B}, \mathrm{Cl}, \mathrm{Ni}$
B $\mathrm{C}, \mathrm{S}, \mathrm{O}, \mathrm{N}, \mathrm{K}, \mathrm{Ca}$
C $\mathrm{Ca}, \mathrm{Mg}, \mathrm{K}, \mathrm{S}, \mathrm{P}$
D $\mathrm{C}, \mathrm{H}, \mathrm{Fe}, \mathrm{Mn}, \mathrm{Cu}, \mathrm{Mo}$

Correct answer

A. $\mathrm{Mn}, \mathrm{Zn}, \mathrm{Fe}, \mathrm{B}, \mathrm{Cl}, \mathrm{Ni}$

Step-by-step solution

Micronutrients are those essential elements which are required by plants in small amounts, less than

10 \mathrm{~m} \mathrm{~mol} / \mathrm{kg}

or

1.0 \mathrm{mg} /

gm of dry matter. Microelements are mostly involved in the functioning of enzymes, as cofactors or metal activators. They are eight in number

-\mathrm{Fe}, \mathrm{Zn}, \mathrm{Mn}, \mathrm{B}, \mathrm{Cu}, \mathrm{Mo}, \mathrm{Cl}

and

\mathrm{Ni}

.

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