a) What are plant hormones?
b) Write two functions of auxin.

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Solution

a) Plant hormones are chemical substances produced by plants that accelerate inhibit or otherwise affect growth, germination, metabolism, or other physiological activities.
b) Auxins promote stem elongation and maintain apical dominance i.e inhibit the growth of lateral buds.

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Auxins are growth hormones capable of promoting cell elongation. They have been used in horticulture to promote growth, flowering and rooting. Write a line to explain the meaning of the following terms related to auxins.
Auxins precursors

Anti-auxins

Synthetic auxins

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Where are auxins synthesised in plants? Mention any two functions of auxins.

Q. Where are auxins synthesised in plants? Mention any two of their functions.

Q. Florist sprinkled a plant hormone to prevent wilting of leaves. Name the hormone he must have used. Give two more examples of plant hormones and also write their functions.

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a) What are plant hormones?b) Write two functions of auxin.

a) Plant hormones are chemical substances produced by plants that accelerate inhibit or otherwise affect growth, germination, metabolism, or other physiological activities.b) Auxins promote stem elongation and maintain apical dominance i.e inhibit the growth of lateral buds.

a) What are plant hormones?
b) Write two functions of auxin.

a) Plant hormones are chemical substances produced by plants that accelerate inhibit or otherwise affect growth, germination, metabolism, or other physiological activities.
b) Auxins promote stem elongation and maintain apical dominance i.e inhibit the growth of lateral buds.