Question

Match the components of columns A, B and C.

	A	B	C
	Mineral	Deficiency symptoms	Importance
a	Potassium	(i) Leaves turn dark green	(I) Regulation of stomatal pore
b	Sulphur	(ii) Accumulation of purple pigment	(II) Constituent of Chlorophyll
c	Magnesium	(iii) Wilting and dropping of leaves	(III) Required for activity of oxidoreductase
d	Copper	(iv) Old leaves start to die	(IV) Essential for carboxylase enzyme
		(v) Shortening of inter-node	(V) It is constituent of thiamine

• A. a - v - II, b - ii - V, c - iii - IV, d - vi - III
• B. a - v - I, b - ii - V, c - iv - II, d - iii - III
• C. a - iv - IV, b - iii - I, c - ii - V, d - v - V
• D. a - iv - II, b - v - I, c - i - V, d - iii - IV

Answer 1

The correct option is B a - v - I, b - ii - V, c - iv - II, d - iii - III

Potassium - It helps in opening and closing of stomata. Its deficiency cause shortening of inter-node.

Sulphur - It is a constituent of thiamine. It's deficiency cause accumulation of purple pigment.

Magnesium - It is required to constitute the chlorophyll. Its deficiency can cause the death of old leaves.

Copper - It is required for the activity of oxidoreductase. Its deficiency can cause wilting and dropping of leaves.

So the correct answer is 'a-v-I, b-ii-V, c-iv-II, d-iii-III'.