Fill in the following blanks:

(a) A plant's response to light is called………………


(b) A plant's response to gravity is called………………


(c) Plant shoot grows upward in response to………………


(d) Plant roots grow downward in response to………………


(e) Tendrils wind around a support in response to ………………


(j) Plant roots grow towards ………. and in the direction of force of………………


(g) A root of a plant grows downward. This is known as………………


(h) ……..is the hormone that causes phototropism in plants


(i) The response of leaves to the sunlight is called...............

(a) A plant's response to light is called phototropism.

(b) A plant's response to gravity is called geotropism.


(c) Plant shoot grows upward in response to sunlight.


(d) Plant roots grow downward in response to gravity.


(e) Tendrils wind around a support in response to touch.


(j) Plant roots grow towards water and in the direction of force of gravity.


(g) A root of a plant grows downward. This is known as positive geotropism.


(h) Auxin is the hormone that causes phototropism in plants.


(i) The response of leaves to the sunlight is called phototropism.


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