Question

A	Cytokinin	(i)	Ethylene
B	Bolting hormone	(ii)	Zeatin
C	Synhetic hormone	(iii)	Gibberellic acid
D	Stress hormone	(iv)	NAA
E	Ageing in plants	(v)	Abscisic acid

• A. A - (ii), B - (iii), C - (v), D - (iv), E - (i)
• B. A - (iv), B - (ii), C - (iii), D- (i), E - (v)
• C. A - (ii), B - (iii), C -(iv), D - (v), E - (i)
• D. A - (iii), B - (ii), C (iv), D - (v), E - (i)

Answer 1

The correct option is C A - (ii), B - (iii), C -(iv), D - (v), E - (i)

Zeatin belongs to the family of plant-growth hormones called cytokinins. It promotes growth of lateral buds, stimulates cell division, callus initiation and seed germination.

Bolting is the premature production of a flowering stem which is induced by plant hormones of the gibberellin family.

NAA is Naphthaleneacetic acid is an organic compound and it is a synthetic plant hormone in the auxin family. It is a rooting agent and used for the vegetative propagation of plants from stem and leaf cutting.

Abscisic acid is called stress hormones as it induces various responses in plants against stress conditions. It increases the tolerance of plants toward various stresses. It induces the closure of the stomata during water stress.

Plant senescence is the process of aging in plants. Ethylene shortens the shelf life of many fruits by hastening fruit ripening and floral senescence.

So, the correct answer is option C.