Q15 of 86 Page 152

To which directional stimuli do (a) roots respond (b) shoots respond?

Roots bend towards gravity and water but bends away from light. Shoots bend towards light but away from gravity. It shows no response to water.

Mention the differences between stomatal and lenticular transpiration.

Give an example for the movement plant part which is very quick and can be observed easily.

Name the cell that surrounds the stoma.

Assertion (A): If the plant part moves in the direction of gravity, it is called positive geotropism.

Reason (R) : Stem shows positive geotropism

Questions · 86

6. Living World of Plants - Plant Physiology

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