Question

Choose the correct sequence of events during wilting.
A. Exosmosis, deplasmolysis, temporary wilting, permanent wilting.
B. Exosmosis, plasmolysis, temporary wilting, permanent wilting.
C. Endosmosis, plasmolysis, temporary wilting, permanent wilting.
D. Endosmosis, deplasmolysis, temporary wilting, permanent wilting.

Answer 1

Exosmosis is when water emerges from the cell and the cell recoils. At the point when water emerges from the cell it will end up being a plasmolysed cell. It will encounter a brief shrinking however normal loss of water will cause lasting wilting.

Complete answer:
Wilting is the loss of inflexibility of non-woody pieces of plants. This happens when the turgor pressure in non-lignified plant cells falls towards zero, because of decreased water in the cells. Wilting is of three types
a) Temporary wilting: temporary dropping of leaves due to the loss of turgidity.
b) Incipient wilting: it is the partial or temporary loss of turgidity in a plant which occurs in the presence of adequate moisture in the soil. And also is associated with excessive water loss.
c) Permanent wilting: it is the loss of turgidity when the leaves cannot regain the turgidity when replaced in an appropriate atmosphere.

To conclude the answer let us understand each term one by one.
Exosmosis is a development of solvent or water particles towards the external side of the cell when it is placed in a hypertonic solution, through this movement the cell becomes flaccid. Exosmosis prompts plasmolysis that is, it is the contraction of protoplast of a plant cell which is the result of loss of water from the cell.it also takes place when the plant is kept in a hypertonic solution. Plasmolysis prompts withering of leaves, which is first transitory and can be turned around by expansion of water to the soil. During wuthering the moisture content in the leaf is reduced which makes the leaf flaccid and pliable. The withering or wilting can, later on, become perpetual when it can't be switched by expansion of water to the soil.

Hence, the correct answer is option ‘B’.

Note: Withering of leaves contain a succession of occasions including exosmosis, plasmolysis and wilting. Exosmosis is when water emerges from the cell and the cell recoils. At the point when water emerges from the cell it will end up being a plasmolysed cell. It will encounter a brief wilting however normal loss of water will cause permanent withering.