Q1 of 86 Page 149

What is nastic movement?

The movement of plant part in response to an external stimulus in which the direction of response is not determined by the direction of stimulus is known as nastic movement. Nastic movement may or may not be growth movement. Examples- Drooping down of leaves of Touch-me-not plant when slightly touched.


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What is the end product of photosynthesis?

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Name the minute openings seen on the lower surface of the leaf.

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b) Which bends towards light but away from the force of gravity.

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Differentiate phototropism from photonasty.