To which directional stimuli do:

(a) roots respond?

(b) shoots respond?

Which of the following is a growth movement and which is not?

(a) folding up of leaves of sensitive plant on touching with hand.

(b) folding up of petals of dandelion flower when light fades.

Name the plant part:

(a) which bends in the direction of gravity but away from light

(b) which bends towards light but away from the force of gravity

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...............

Plant parts show two types of movements, one dependent on growth and the other independent of growth.

Give one example of the movement in plant parts:

(a) which depends on growth

(b) which does not depend on growth