Free Mineral Nutrition (Daily Quiz: 5) NEET Biology Questions & Answers with Detailed Explanation & Full Review

Question-1

In the choices below, which is not a correct pairing of a macronutrient and the major functions it performs in the life of a plant?

(a) Calcium-activity of membranes and cytoskeleton, second messenger.

(b) Sulfur-in proteins and coenzymes.

(c) Potassium-enzyme activation, water balance, ion balance.

(d) Iron-in active sites of many redox enzymes and electron carriers.

Question-2

Nodules that are actively fixing nitrogen are pink, demonstrating the presence of -

(a) Chlorophyll

(b) Leg-haemoglobin

(c) Fe

(d) Anthocyanin

Question-3

Which of the following is a free living aerobic nonphotosynthetic nitrogen-fixer?

(a) Azotobacter

(b) Rhizobium

(c) Azospirillum

(d) Nostoc

Question-4

Assertion:
Calcium is a constituent of middle lamella.
Reason:
Calcium is required in mitotic division.

(a) If both the assertion and reason are true but the reason is not a correct explanation of the assertion.

(b) If both the assertion and the reason are true and the reason is a correct explanation of the assertion.

(c) If the assertion is true but the reason is false.

(d) If both the assertion and reason are false.

Question-5

Plants can be grown in (Tick the incorrect option)

(a) water with essential nutrients.

(b) either water or soil with essential nutrients.

(c) soil with essential nutrients.

(d) water or soil without essential nutrients.