Plant hormones are produced in extremely low concentrations in plants to regulate the physiological processes and tropic movements –

(a) Name one plant hormone responsible for the changes shown in the above picture.

(b) Identify a hormone that has an opposite effect to the one depicted in the picture.

(c) Give an example of a plant that shows Thigmotropism.

(a) Abscisic acid, Ethylene

(b) Auxin

(c) Pea plant