D) Match the columns
1) Auxin
a) stem elongation
2) Gibberllins b) enlarements of cells
c) cell division
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Answer:Correct option is
A
a- 3, b- 1, c- 5, d- 4, e- 2
Kinetin, a type of cytokinin was isolated from autoclaved herring sperm DNA. It has cell division-promoting activity. Auxin is a plant hormone. It promotes stem elongation and thus regulates apical dominance. Gibberellic acid is a plant hormone which breaks the dormancy. Before germination, it stimulates the synthesis of amylase enzyme. Amylase hydrolyzes starch into glucose which is used to provide nourishment to the seed embryo. Ethylene is a plant hormone that causes the downward bending of the plant part. This is called as epinasty. Abscisic acid is a plant hormone that acts as the inhibitor of growth.
Thus, the correct answer is option A.
Explanation:
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