Plant Growth and Development Question 2

2. Coiling of garden pea tendrils around any support is an example of:

(a) thigmotaxis

(b) thigmonasty

(c) thigmotropism

(d) thermotaxis

Show Answer

Answer : c

Hints & Solutions

(c) The coiling of garden pea tendrils around any support is an example of thigmotropism. Thigmotropism is the growth movement in response to touch. The stems and tendrils of the climbers are positively thigmotrophic in their response.