A cell is placed into a 3% dextrose solution.At that concentration,the solution is isotonic to the cell.If the concentration of dextrose in the solution is increased to 5%,the cell is now in a(n):
A)less concentrated solution.
B)isotonic solution.
C)hypotonic solution.
D)hypertonic solution.

Question

Quizplus · Accepted Answer

The cell was initially in an isotonic solution at 3% dextrose concentration, meaning the concentration of solutes inside and outside the cell were equal. When the concentration of dextrose in the solution is increased to 5%, the solution becomes hypertonic relative to the cell, meaning the concentration of solutes outside the cell is higher than inside the cell. This results in water leaving the cell via osmosis, causing the cell to shrink. Therefore, the answer is D, hypertonic solution.

A Cell Is Placed into a 3% Dextrose Solution