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THulticopy GOLD, Kores, KO, Multicopy GOLD, IMENT, CONTROL AND COORDINATION IN LIVING ORGANISM, 5., 3 Chemonasty-The nastic movement induced by change in, intensity of chemical substance is called chemonasty., Examples-Movement of tendril away from chloroform;, curving of tentacles of the insectivorous plant, response to soluble proteins when placed at the centre of, Sundew in, the leaf., A Seismonasty-The nastic movement in response to the, intensity of mechanical stimuli such as contact with foreign, body, pressure, shock, shaking, etc. is called seismonasty. The, extent of seismonastic movement depends upon the intensity of, riment,, rvature, general, nd sho, stimulus, the vigour and age of the plant., 1.9: Chemonasty in Pitcher plant, positive, id to be, m: This, in the, ositively, ntainer, 北, oles of, B., water, A, 1.11 : Seismonasty in touch-me-not, A. Before touch, b. After touch, 1.10 : Seismonasty in Mimosa pudica, plant, > Examples-Leaflets of Mimosa pudica when touched droop down. This movement is, based on changes in turgor pressure in pulvinus, the swollen basal region at leaf base, containing sensitive cells., The nastic movement which is influenced by the intensity of both light and, temperature is called Nyctinasty., sity, EXERCISE, [ Each question carries 1 mark, qu ns (MCQ) :, ing organism remains stationary but its parts move, then it, ovement (c) Spontaneous movement (d) Movement and locomoti, y chemical substances is called-(a) Nyctinasty (b) Chemon=, jer, bosing the correct answer :, of