Question

Why does the skin of our fingers shrink when you wash clothes for a long time?

Answer 1

Hint: When a cell is inserted in a hypertonic solution, exosmosis occurs, which is the passage of water beyond the cells. The flow of water outside causes the cell to become flaccid. Exosmosis causes the skin on our fingers to thin after we wash our clothing after a long time.

Complete answer:
When a cell is inserted in a hypertonic solution, exosmosis occurs, which is the passage of water beyond the cells. The flow of water outside causes the cell to become flaccid. Exosmosis causes the skin on our fingers to thin after we wash our clothing after a long time. In the presence of hypertonic and hypotonic solutions, this phenomenon occurs.
Hypotonic solution
The soluble concentration of the solution outside the cell is greater than that of the solution within the cell. As a result, water molecules travel from inside and outside the cell.
Hypertonic solution
The solvent outside the cell is less dense than the solution within. As a result, water molecules enter the cell from the outside.
Our hands are exposed to water for a long time as we wash our clothing. The inside of our hands is a hypertonic solution, while the outside is a hypotonic solution. Since our skin is translucent, it acts like a semi-permeable membrane. As a result, the water is not drained but then exits, causing it to shrink. A hypertonic solution is one that is more concentrated than our skin cells. Exosmosis is the name for this operation.

Note:
The mechanism of digital vasoconstriction, or the narrowing of blood vessels, causes this kind of skin wrinkle. The nerve fibre in the skin shrinks and the body temperature regulator (glomus bodies in the skin) in the hand loses volume when the hand is immersed in sweat. As a result, the skin's epidermis is drawn inward, causing wrinkles. The function of digital vasoconstriction is currently being investigated.