Question

A cell will swell up if

• A. The concentration of water molecules in the cell is higher than the concentration of water molecules in surrounding medium.
• B. The concentration of water molecules in surrounding medium is higher than water molecules concentration in the cell.
• C. The concentration of water molecules is same in the cell and in the surrounding medium.
• D. Concentration of water molecules does not matter.

Answer 1

The correct option is B The concentration of water molecules in surrounding medium is higher than water molecules concentration in the cell.

Water molecules will move from a region of higher concentration to a region of lower concentration. Thus, if the cells are placed in a solution where the concentration of water is more outside, the cell will absorb water. It will help in imbibition of the cell and thus, cell will swell up.