Free Plant Growth And Development (Daily Quiz: 6) NEET Biology Questions & Answers with Detailed Explanation & Full Review

Question-1

Which of the following is a characteristic of ethephon?

(a) Transported within the plant

(b) Readily absorbed

(c) Releases ethylene slowly

(d) All of these

Question-2

Refer the functions of the growth hormones given below.

1. Cell division
2. Cell enlargement
3. Pattern formation
4. Tropic growth
5. Flowering
6. Fruiting
7. Seed germination
8. Response to wound
9. Response to stresses of biotic and abiotic origin.

Identify the functions of growth promoters and growth inhibitors from the above.

	Functions of growth promoters	Functions of growth inhibitor
(a)	I, II, VII, IX	III, IV, V, VI, VII
(b)	VIII, IX	I, II, III, IV, V, VI, VII
(c)	I, II, III, IV, V, VI, VII	VIII, IX
(d)	I, II, III, IV, V, VI, VII, IX	VIII

(a) (a)

(b) (b)

(c) (c)

(d) (d)

Question-3

The method that renders the seed coat permeable to water so that embryo expansion is not physically retarded is called

(a) stratification

(b) vernalization

(c) denudation

(d) scarification

Question-4

Match the following:

(A) IAA	(i) Herring sperm DNA
(B) ABA	(ii) Bolting
(C) Ethylene	(iii) Stomatal closure
(D) GA	(iv) Weed–free lawns
(E) Cytokinins	(v) Ripening of fruits

(a) (A) – (v), (B) – (iii), (C) – (iv), (D) – (ii), (E) – (i)

(b) (A) – (iv), (B) – (iii), (C) – (v), (D) – (ii), (E) – (i)

(c) (A) – (iv), (B) – (i), (C) – (v), (D) – (iii), (E) – (ii)

(d) (A) – (v), (B) – (iii), (C) – (ii), (D) – (i), (E) – (iv)

Question-5

Leaf fall can be prevented with the help of

(a) auxins

(b) abscisic acid

(c) florigen

(d) cytokinins