Define tropisms. Mention 5 types of tropism. [3 MARKS]
Definition: 1 Mark
Types point: 2 Marks
1. A growth movement of a plant in response to an external stimulus in which the direction of stimulus determines the direction of response is called tropism.
2. Five types of tropisms are
Light - phototropism
Gravity - geotropism
Chemical - chemotropism
Water - hydrotropism
Touch - thigmotropism