Match the following plant growth regulators (PGRs) with their physiological effects :- PGRs Physiological effects (A) Auxins (i) Increase the absorption surface of root (B) Ethylene (ii) Increase tolerance of plants to stresses (C) Cytokinins (iii) Root initiation in stem cutting (D) Abscisic Acid (iv) Delay of leaf senescence

Correct Answer is : A – iii, B – i, C – iv, D – ii

A – i, B – ii, C – iii, D – iv

A – iii, B – i, C – iv, D – ii

A – iv, B – iii, C – ii, D – i

A – ii, B – iv, C – i, D – iii

NEET 2021 Model Test Paper 2

Question : 164 of 180

Marks: +1, -0

Match the following plant growth regulators (PGRs) with their physiological effects :-

	PGRs		Physiological effects
(A)	Auxins	(i)	Increase the absorption surface of root
(B)	Ethylene	(ii)	Increase tolerance of plants to stresses
(C)	Cytokinins	(iii)	Root initiation in stem cutting
(D)	Abscisic Acid	(iv)	Delay of leaf senescence

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