Give one example of the movement of a plant part which is caused by the loss of water (or migration of water).

What is the stimulus in:

(a) phototropism?

(b) geotropism?

(c) chemotropism?

(d) hydrotropism?

(e) thigmotropism?

Give the scientific terms used to represent the following:

(a) Bending of a shoot towards light.

(b) Growing of roots towards the earth.

(c) Growth of a pollen tube towards ovule.

(d) Bending of roots towards water.

(e) Winding of tendril around a support.

Give one example each of a plant part:

(a) which is positively hydrotropic as well as positively geotropic.

(b) which is positively phototropic but negatively geotropic.

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.