Red blood cells are placed in a solution of 0.9% NaCl and no diffusion or osmosis is observed. This means that the solution is ________.
A)isotonic
B)hypotonic
C)hypertonic
D)isertonic

Question

Red blood cells are placed in a solution of 0.9% NaCl and no diffusion or osmosis is observed. This means that the solution is ________. 
A)isotonic
B)hypotonic
C)hypertonic
D)isertonic

Quizplus · Accepted Answer

If there is no diffusion or osmosis observed, it means that the concentration of solutes inside the red blood cells is equal to the concentration of solutes outside the cells in the 0.9% NaCl solution. This indicates that the solution is isotonic, as there is no net movement of water into or out of the cells.

Red Blood Cells Are Placed in a Solution of 0