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Plant Hormones

Where is the ...

Question

Where is the auxin hormone made in a plant stem?

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Solution

Auxins hormone is made by cells at the tip of the stem.

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Where is the auxin hormone made in a plant stem?

Name the following :

(a) Hormone that stimulates growth by cell-division.

(b) Growth retarding hormone in plants.

(c) Main auxin found in most plants.

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

Q. Name a plant hormone that can never act alone. List any three activities of this hormone in conjunction with auxins.

Q. Read the following statements:-
(a) Auxins are group of plant hormones synthesized at the shot-tip of the plant.
(b) Gibberellins stimulate stem elongation.
(c) Cytokinins delay the ageing in leaves.
(d) Abscisic acid is a growth inhibitor.
Correct statements are _____________.

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