The plant’s roots grow in the direction of water availability.
The phenomenon showing the response of plants part (roots) to water is called hydrotropism.
(a) What does a Mimosa pudica plant do in response to touch? What is this phenomenon known as?
(b) What happens to the dandelion flower
(i) during daytime
(ii) at night?
What is this phenomenon known as?
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 grow upward in response to ..............
(d) Plant roots grow downward in response to .............
(e) Tendrils wind around a support in response to ..........
(f) 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 ..............