Question

The leaves of ________ plant, also known as touch-me-not plant curl up when touched.

Answer 1

The leaves of a plant that curl up when touched, returning to full leaf after a few minutes belong to the family Fabaceae.This plant is known for rapid plant movement. That's why this plant is also known as the touch-me-not plant.

Complete answer:
The leaves of the touch-me-not plant or Mimosa pudica plant show Thigmonasty.
Thigmonasty is the nastic response of a plant or fungus to touch or vibration.
Mimosa pudica plant leaves respond to vibrations when they are touched or shaken.
It collapses and its leaflets fold together as it endures a shock. It results from a quick loss of turgor by cells of the leaflets, as the water available in the leaves flows backward into the plant in response to the stimulus.
This plant keeps its leaves upright by maintaining the water content in the leaves (turgidity) when touched this water departs the leaf to flow backward into the plant body. This loss of water in the leaf causes them to fall.
The speed of the response depends on the degree of the stimulus. Flipping the leaf hard will cause the leaf to close faster whereas a mild touch at the tip of a leaf will cause a slower response.

So, the answer to the above question is the “Mimosa pudica” plant.

Note: There are five types of different Nastic movements in plants-

Seismonastic Movement
Thigmotactic movement
Photonasty Movement
Thermotactic movement
Nyctinasty movement