Question

When the leaves of a Mimosa pudica plant are touched with a finger, they fold up quickly. This is an example of (a) chemotropism
(b) thigmonasty
(c) photonasty
(d) thigmotropism

Answer 1

Answer:

thigmonasty

Explanation:

this is because this plant folds up itself when it comes in contact with any touch... that is why it is even called as touch me not plant..

Answer 2

Answer:

chemotropism is your answer

Explanation:

When we physically touch the 'touch-me-not' plants ,then our physical touch works as an external stimulus for the plant.

In the reaction of the external stimulus, a special type of chemical is secreted inside the leaves of the touch-me-not plants.

Due to this chemical secretion,the internal turgor pressure of the touch me not plant's leaves decrease and the leaves shrink it's physical size.

This plant movement is known as the chemotrophic movement.

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