QuestionSolutions / tonicity
A cell is bathed in a solution that has a greater osmolarity than that of cytosol. The solution can be described as:
- (a) Hypertonic
- (b) Hypotonic
- (c) Isotonic
- (d) Hydrotonic
Answer: (a) Hypertonic
Outside solution has higher osmolarity than the cytosol → hypertonic; water leaves the cell, which shrinks (plasmolysis/crenation) → (a).