2006-12-30 00:27:27 · 7 answers · asked by horizon 3 in Science & Mathematics ➔ Botany
the touch-me-not plant or mimosa pudica has a special part near the leaf base called pulvinus which is like a resevoir of water. When the leaf is proper, there is water in the pulvinus.
But when u touch it, the water gets transported to the stem of the plant and so the leaf "sleeps".
2006-12-30 00:33:06 · answer #1 · answered by SkkARd 3 · 0⤊ 0⤋
Body receptors respond to touch. They respond whenever their shape is altered or distorted and trigger extremely sensitive fast firing neurons.
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.
2006-12-30 08:31:27 · answer #2 · answered by Som™ 6 · 0⤊ 0⤋
cause it eats the insects so when we touch it .it sleep
2006-12-30 08:31:42 · answer #3 · answered by ahmed m 1 · 0⤊ 1⤋
It does not sleep, but, shrink. It is similar to your flinching.
2006-12-30 08:36:34 · answer #4 · answered by Anonymous · 0⤊ 0⤋
my aunt's name is Phylis
2006-12-30 08:29:18 · answer #5 · answered by Anonymous · 0⤊ 1⤋
Due to NASTIC MOVEMENT
2006-12-31 22:31:28 · answer #6 · answered by Anonymous · 0⤊ 0⤋
why you talk funny
2006-12-30 08:28:24 · answer #7 · answered by Anonymous · 0⤊ 1⤋