Free Mineral Nutrition (Daily Quiz: 8) NEET Biology Questions & Answers with Detailed Explanation & Full Review

Question-1

The first stable product of fixation of atmospheric nitrogen in leguminous plants is

(a) glutamate

(b) $NO^−_2$

(c) $NO^-_3$

(d) ammonia.

Question-2

Plants absorb mineral salts from the soil solution through:

(a) Perforations at the apex of root hair cells

(b) The cell wall which is semipermeable

(c) A semipermeable membrane into the cytoplasm

(d) None of these

Question-3

A plant requires magnesium for

(a) protein synthesis

(b) chlorophyll synthesis

(c) holding cells together

(d) cell wall development

Question-4

Boron in green plants assists in

(a) activation of enzymes

(b) sugar transport

(c) acting as enzyme cofactor

(d) photosynthesis

Question-5

Which element plays an important role in opening and closing of stomata?

(a) N

(b) P

(c) K

(d) Ca