what is the chemicalr eaction taken when we touch the plant " touch-me-not" ?why is the reason that they begin to fold up and droop ?

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Solution

Touch-me not is an sensitive plant which closes its leaves when touched (Thigmonasty). It is due to turgor pressure difference between the upper and lower halves of the base of petiole (pulvinus). Lower half cells loses water and upper half cells of pulvinus become turgid due to transfer of water from lower cells. Thus, the entire leaf droops down when touched.

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When we touch the leaves of a touch-me-not plant, they begin to fold up and droop. What kind of movement is observed here?

When we touch the leaves of a touch-me-not plant, they begin to fold up and droop. When a seed germinates, the root goes down, the stem comes up into the air. What kind of movement is depicted in the first case and the second case respectively?

I ) When we touch the leaves of a touch-me-not plant, they begin to fold up and droop.

II) When a seed germinates, the root goes down, the stem comes up into the air.

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The rapid drooping of the leaves of the touch-me-not plant when we touch it is an example of ___.

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