Question

4. If you are provided with some vegetables to cook, you generally add salt into the
vegetables during the cooking process.
a. What happens to the vegetables after adding salt?
b. Which mechanism is responsible for the changes?Explain.
5. Why does the skin of your mother's fingers shrink when she washes clothes for a long
a
time?
a. What is responsible for these changes?
b. Explain the process in brief.​

Answer 1

Explanation:

4 a) On adding salt, the external medium is made hypertonic, i.e., concentration of water is lowered as compared to the concentration of water inside the cell.

b)Thus, water is released from the vegetables due to exosmosis (water molecules goes out of the cell resulting in shrinkage of cell).

5. When we wash clothes, our hands are exposed to water for a long time. Our hands behave as a hypertonic solution and the outside of our hands behave as a hypotonic solution. ... So actually the water is not absorbed here just leaving and thus it shrinks.