Question

Now put the same raisins (swollen) in a breaker containing concentrated sugar solution for about
24 hours. Remove the raisins and record your observation with a help of diagram.​

Answer 1

Raisins in beaker A were more swollen than those in beaker B.

Raisins in the beaker A will swell as solution surrounding them is hypotonic in nature. Hypotonic solution contains lesser solute concentration. In such case, endosmosis will occur in which inward movement of the water molecules from the lower solute concentration to higher solute concentration through raisin covering.

Raisins in the beaker B will shrink as solution surrounding them is hypertonic in nature. Hypertonic solution contains higher solute concentration. In such case, exosmosis will occur in which outward movement of the water molecules from the lower solute concentration to higher solute concentration through raisin covering.