Raisins are dried grapes The average diameter of 20 raisins

Raisins are dried grapes. The average diameter of 20 raisins is 1.2 cm. The raisins are submerged in distilled water for 48 hours. The average diameter is remeasured, and found to be 2.1 cm. These same raisins are then transferred to a salt solution and the average diameter decreases to 1.8 cm. The best conclusion is that the cells of the raisins are ________.

Select one:

A) hypotonic to distilled water and hypertonic to the salt solution

B) isotonic to distilled water and hypotonic to the salt solution

C) hypertonic to both distilled water and the salt solution

D) hypertonic to distilled water and hypotonic to the salt solution

E) hypotonic to distilled water and isotonic to the salt solution

F) hypotonic to both distilled water and the salt solution

Solution

Answer:

D) hypertonic to distilled water and hypotonic to the salt solution

Water moves from the low solute concentration (hypotonic solution) to high solute concentration (hypertonic solution) through semepermeable membrane. This process is called osmosis.