Helpp pllzzz???????

Question

i am working for my biology project and my topic is about the touch-me-not plant. It is a plant that when we touch it the leaves closes. i want an explanation of this whole process that how it happenns and why and the whole thingy about it.

PLz tell me any sites or any explanation about the touch-me-not pant.

Thanku so much!

Answer 1

Explanation 1) Body receptors respond to touch. They respond whenever their shape is altered or distorted and trigger extremely sensitive fast firing neutrons.

Vertebrates have two kinds of tactile receptors, those that register pressure and those that respond to touch.

But Mimosa pudica is more sensitive than others.

The opening and closing of the plants' leaflets and the entire leaf are controlled by a fluid filled sac-like structures found at the base of the compound leaf and each leaflet.

The swollen base of the leaf stalk is called `pulvinus'. When the plant is touched, electrical signals are flashed by the cells.

The cells in the `pulvinus' respond to this signal by flushing out potassium and water. With the massive loss of water, the pulvinus bends over and the leaflets fold.

Explanation 2) The leaves of the mimosa protect themselves by performing a disappearing act.

When a grasshopper or a locust lands on the plant, the rows of feathery, small leaflets that rise from either side of the mimosa's stems, suddenly fold upwards and appear like unappetising twigs. If this does not make the insect lose interest and fly away, the leaves make a downward movement to expose their thorny stems, thus baffling the insect and driving it away.

Hope this helps :)