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CBSE Class 10 Answered

1. how does control and coordination takes place in plants [3marks ].
Asked by sangavi519 | 02 Oct, 2009, 11:19: AM
answered-by-expert Expert Answer

Control and coordination occurs in plants mainly through hormones as well as electrical-chemical means.

Different plant hormones like auxin, cytokinin, abscisic acid, ethylene and gibberellins help to coordinate growth, development and responses to the environment. Plant hormones shape the plant, affecting seed growth, time of flowering, the sex of flowers, senescence of leaves and fruits. They affect which tissues grow upward and which grow downward, leaf formation and stem growth, fruit development and ripening, plant longevity and even plant death. Hormones are vital to plant growth.

In case of immediate response to stimulus, plants use electro-chemical signals to convey information from cell to cell.

Answered by | 04 Oct, 2009, 06:55: AM
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