Question

What do you understand by osmosis ? What will happen if a cell is put in following solutions :
(a) Hypotonic Solution
(b) Isotonic Solution
(c) Hypertonic Solution
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Answer 1

Explanation:

If a cell is in a hypertonic solution, the solution has a lower water concentration than the cell cytosol, and water moves out of the cell until both solutions are isotonic. Cells placed in a hypotonic solution will take in water across their membranes until both the external solution and the cytosol are isotonic.

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Answer 2

$\huge\textsf{Osmosis:}$

"Osmosis is defined as the diffusion of solvent (like water) from the solution of lower concentration (Hypotonic) to the solution of higher concentration (Hypertonic) when both are separated by a semi-permeable membrane".

(a) Hypotonic Solution :-

If the concentration of outer solution is less than that of the cytoplasm and cell sap then solution is called Hypotonic.

$\huge{→}$ When cell is placed in such kind of solution then cell swells up.

(b) Isotonic Solution :

If the concentration of outer solution is less than that of cytoplasm and cell sap then Solution is called Isotonic.

$\huge{→}$ When cell is placed in such kind of Solution then , no change is seen in cell.

(c) Hypertonic Solution :

If the concentration of outer solution is higher than that of cytoplasm and cell sap such Solution is known as Hypertonic Solution.

$\huge{→}$ Cell in such kind of solution get shrink.