A potted plant having straight parts A and B was placed horizontally on its side as shown in figure (i). After a few days it was observed that the parts A and B of the plant acquire new positions as shown in Figure (ii).
(a) Name the phenomenon exhibited by the position of plant parts A and B in Figure (ii)
(b) Name the stimulus (other than sunlight) which causes plant part A to grow and bend upwards, and plant part B to bend downwards.
(a) The phenomenon exhibited by the positions of plant parts A and B is geotropism.
(b) The stimulus which causes plant part A to grow and bend upwards and part B to bend downwards is gravity.
Video Tutorials For All Subjects
- Coordination in Plants - Movement Due to Growth