Question

Give an example of a plant tropism.

Answer 1

Tropisms are the growth responses of plants where the plant grows towards or away from the stimulus. Growth towards the stimulus is a positive tropism. Growth away from the stimulus is called a negative tropism. There are three main tropisms: 1) The response to light is called phototropism. 2) The response to gravity is called gravitropism (or sometimes geotropism). 3) The third tropic response to heat is thigmotropism