Auxin, Cytokinin and Ethylene are examples of:

Antibiotics

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Animal hormones

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Plant hormones

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Enzymes

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Solution

The correct option is C
Plant hormones

The hormones responsible for the regulation of growth and development in plants are called plant hormones or phytohormones. Five phytohormones have been identified in nature. Thay are auxins, cytokinins, gibberellins, abscissic acid and ethylene.

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Similar questions

One of the following plant hormones is responsible for the phenomenon of phototropism in plants. This is :

(a) giberellin

(b) eltroxin

(d) auxin

Plant Hormone	Functions
1. Auxin	Helps in the growth of plant tissue.
2. Cytokinin	Promotes cell division, delays aging of cells.
3. Ethylene	Inhibits growth and causes wilting of leaves, promoting dormancy of buds.
4. Gibberellin	This is a gaseous hormone that causes the ripening of fruits

Column I	Column II
(A) Auxin	(i) Fruit ripening
(B) Cytokinin	(ii) Phototropism
(C) Abscisic acid	(iii) Suppression of cell division
(D) Ethylene	(iv) Stomatal opening and closing
	(v) Growth of lateral buds

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