Question

A cell will swell up if(a) The concentration of water molecules in the cell is higher than theconcentration of water molecules in surrounding medium(b) The concentration of water molecules in surrounding medium is higherthan water molecules concentration in the cell(c) The concentration of water molecules is same in the cell and in thesurrounding medium(d) Concentration of water molecules does not matter

Answer 1

b. if the conc. of water molecules is higher in the surrounding than inside the cell.

water will rush from an area of higher osmotic pressure to an area of lower osmotic pressure to equalise it.