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Characteristics of Auxin

Low concentra...

Question

Low concentration of auxin inhibits growth in

A

Stem

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B

Roots

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C

Leaves

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D

Flowers

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Solution

The correct option is A Stem
Auxin is a plant hormone. It is produced at the tip of stem. Apical dominance is a phenomenon in which central stem is dominant and lateral stems are suppressed. It promotes stem elongation and inhibits growth of lateral buds. Hence, low concentration of auxin inhibits growth in stem.
Thus, the correct answer is option A.

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Similar questions

Q. Auxin : Growth of Plants :: _____ : Inhibits growth of plants.

Q. Auxin inhibits the growth of

Q. Choose the right from the following.
i. In light, hormone auxin, helps the cells to grow longer in plants .
ii. Plant hormone gibberellins helps in growth of a stem.
iii. Cytokinins inhibits cell division.
iv. Abscisic acid promote growth in plants.

Q. Pick up the correct statements.
(A) Cytokinins promote cell division.
(B) Auxins promote growth.
(C) Abscisic acid promotes growth.
(D) Gibberellins inhibit growth.

Q. I. Assertion: The presence of apical bud inhibits the growth of lateral bud, this is called apical dominance.
II. Reason: Auxin is responsible for apical dominance.

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