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What is tropic movement and nastic …

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What is tropic movement and nastic movements?
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Sia ? 4 years, 7 months ago

Tropic movement

Nastic movement

 (i) It is always directional in relation to direction of stimulus.

(i) It is non-directional and is not related to the direction of movement.

(ii) Mostly it occurs in cylindrical organs e.g. shoot tip.

(ii) Such a movement is generally found in flat or asymmetrical organs e.g. leaves.

(iii) It is a growth movement.

(iii) It can be growth or turgor movement.

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