(a) Define geotropism. Give one example of geotropism. (b) What is me

1.	(a) Define geotropism. Give one example of geotropism. (b) What is meant by ‘positive geotropism’ and ‘negative geotropism ? Give one example of each type.(c) Name one plant part which exhibits positive thigmotropism.
Answer» (a) The movement of plant part in response to gravity is called geotropism. Example – Roots grow towards gravity. (b) If the plant part moves towards the direction of gravity, it is called positive geotropism. Example – Roots. If the plant part moves against the direction of the gravity it is negative geotropism. Example – Stem (c) Tendrils.

(a) Define geotropism. Give one example of geotropism. (b) What is meant by ‘positive geotropism’ and ‘negative geotropism ? Give one example of each type.(c) Name one plant part which exhibits positive thigmotropism.

Answer»

(a) The movement of plant part in response to gravity is called geotropism.

Example – Roots grow towards gravity.

(b) If the plant part moves towards the direction of gravity, it is called positive geotropism.

Example – Roots. If the plant part moves against the direction of the gravity it is negative geotropism.

Example – Stem