Question

Why is the folding up of the leaves of a sensitive plant on touching with a finger not a tropism​

Answer 1

Step-by-step explanation:

`\huge \purple{ \red{ \bf❥} \frak{Answer}}`

`\red{ \small \text{It is a non-directional movement}}`

where as Tropism is a directional movement where the direction of the movement of the plant part is towards the stimulus

Answer 2

The folding of leaves of a sensitive plant is not a case of tropism (like thigmotropism) because in this case the direction of movement of leaves does not depend on the direction of stimulus (touch).