Biology
Complete the following sentences:
(a) Growth of root towards water is …………… .
(b) …………… hormone inhibits apical dominance.
(c) …………… and …………… induce chemotropism of angiosperms and gymnosperms.
(d) …………… of sweet peas exhibit thigmotropism.
(e) …………… is also called as "stress hormone".
Chemical Coordination in Plants
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Answer
(a) Growth of root towards water is hydrotropism .
(b) Cytokinins hormone inhibits apical dominance.
(c) Sugars and peptones induce chemotropism of angiosperms and gymnosperms.
(d) Tendrils of sweet peas exhibit thigmotropism.
(e) Abscisic acid is also called as "stress hormone".
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Related Questions
Assertion (A): Ethylene is the only hormone which is a gas at ordinary temperature.
Reason (R): It helps in the ripening of fruits and is produced in the roots.
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- A is True and R is False.
- A is False and R is True.
Match the items in column A with those of column B.
Column A Column B (a) Auxin (i) apical dominance (b) Gibberellin (ii) cell-division (c) Cytokinin (iii) fruit ripening (d) Ethylene (iv) internodal elongation Name the following:
A hormone that stimulates growth by cell division.
Name the following:
A growth-retarding hormone in plants.