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Post Fertilisation Structures and Events

Plant growth ...

Question

Plant growth movements are induced by phytohormones.

A

True

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B

False

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Solution

The correct option is A
True

Plant growth promoters or phytohormones, for example auxins, gibberellins and cytokinins induce growth promoting activities such as cell division, cell enlargement, pattern formation, tropic growth, flowering, fruiting and seed formation in plants.

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Q. Assertion: Phytohormones are the plant compounds that can promote and inhibit the plant growth.
Reason: There are some phytohormones like auxin, cytokinins which play a role in plant growth and some phytohormones like abscisic acid which inhibit the plant growth.

Q. Phytohormones are chemicals that regulate plant growth. They are signal molecules produced within the plant, and occur in extremely low concentrations. Which of the following are not phytohormones?

Q. Which of the following phytohormones promote plant growth?

Q. Certain movements of plants do not result in their growth and are termed as movements which are growth:

Q. What do you understand by growth regulators and phytohormones?

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