CBSE Class 10 Science 2019 Delhi Set 1
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Question : 11 of 28
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What are plant hormones? Name the plant hormones responsible for the following:
(i) Growth of stem
(ii) Promotion of cell division
(iii) Inhibition of growth
(iv) Elongation of cells
(i) Growth of stem
(ii) Promotion of cell division
(iii) Inhibition of growth
(iv) Elongation of cells
Solution:
In plants, growth, development and response to the environment are controlled and coordinated by a special class of chemical substances known as phytohormones. They are synthesised in minute amounts.
(i) Gibberellins
(ii) Cytokinins
(iii) Abscisic acid
(iv) Auxins
(i) Gibberellins
(ii) Cytokinins
(iii) Abscisic acid
(iv) Auxins
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