Question

(i) Identify A - and B- cells.
(ii) What will happen if B-cells are kept in hypotonic solution
(iii) What will happen if A Cells are kept in hypertonic solution?

Answer 1

(i) A cells represent a group of turgid cells. B cells represents a group of plasmolysed cells.

(ii) Water has a tendency to move from its higher concentration to its lower concentration. In the given case, higher concentration of water will be present in the hypotonic solution and lower concentration of water will be present within plasmolysed B cells. This difference in concentration of water will result in migration of water into the B-cells and these cells will become deplasmolysed.

(iii) Hypertonic solutions have lower concentration of water as compared to the hypotonic solutions. The tendency of water to flow from its higher concentration to lower concentration will lead to the movement of water outside the A cell. This will result in gradual loss of water from A cells due to exosmosis and these cells will become plasmolysed cells.