Free Mineral Nutrition (Weekly Quiz: 1) NEET Biology Questions & Answers with Detailed Explanation & Full Review

Question-1

Nitrogen gas is reduced to ammonia by

(a) Nitrogenase

(b) Nitrification

(c) Rhizobium

(d) Denitrification

Question-2

Which of the following elements plays an important role in biological nitrogen fixation?

(a) Molybdenum

(b) Zinc

(c) Copper

(d) Manganese

Question-3

Conversion of ammonia into nitrates through Nitrosomonas is called

(a) nitrification

(b) denitrification

(c) nitrogen fixation

(d) ammonification

Question-4

Which element is not considered a macronutrient?

(a) Ca

(b) Mn

(c) Mg

(d) P

Question-5

Which one of the following is not a micronutrient?

(a) Magnesium

(b) Zinc

(c) Molybdenum

(d) Boron

Question-6

Nitrogen is one of the major constituents of

(a) Nucleic acid

(b) Protein

(c) Vitamins and hormones

(d) All of these

Question-7

Manganese is required in:

(a) photolysis of water during photosynthesis

(b) chlorophyll synthesis

(c) plant cell wall formation

(d) nucleic acid synthesis

Question-8

The following functions are related to

1. Uptake and the utilization of calcium
2. Carbohydrate translocation
3. Cell elongation and maturation
4. Membrane functioning

(a) B

(b) Ca

(c) Mo

(d) Zn

Question-9

$N_{2} + 8e^{–} + 8H^{+} + 16 ATP → 2NH_{4} + H_{2}$ + 16ADP + 16Pi The above equation refers to

(a) nitrification

(b) ammonification

(c) nitrogen fixation

(d) denitrification

Question-10

The plant ash is an indication of.

(a) waste product.

(b) mineral salts absorbed by plants.

(c) organic matter of plant.

(d) None of the above