In plants like Touch-me-not (Mimosa), movement also occurs at the places other than where it has been touched.

Question

Give scientific reasons:

In plants like Touch-me-not (Mimosa), movement also occurs at the places other than where it has been touched.

Answer 1

• In plants like Touch-me-not (Mimosa), the information about the touch is relayed within the plant from one place to another. 
• Plants use electro-chemical impulses for transfer of information from one place to another. 
• Plant cells change their shape by increasing or decreasing their water content and thereby, bring about the movements of plants. 
• Hence, in plants like Touch-me-not (Mimosa) movement also occurs at the places other than where it has been touched.