Which is a correct example of tonicity?
A)Water is hypertonic to red blood cells.
B)Turgor pressure is created when a plant cell swells in a hypotonic solution.
C)Plasmolysis results from plant cells in hypotonic solutions.
D)Crenated red blood cells result when they are placed in a hypotonic solution.
E)If a cell is placed in a hypertonic solution,water enters the cell.

Question

Quizplus · Accepted Answer

Turgor pressure is created when a plant cell swells in a hypotonic solution. This is a correct example of tonicity, where the hypotonic solution has a lower solute concentration than the cell, causing water to enter the cell and create pressure against the cell wall.

The other choices are incorrect: 
A) Water is hypotonic to red blood cells, as it has a lower solute concentration than the cells. 
C) Plasmolysis results from plant cells in hypertonic solutions, where the solute concentration of the solution is higher than that of the cell, causing water to leave the cell and the plasma membrane to shrink away from the cell wall. 
D) Crenated red blood cells result when they are placed in a hypertonic solution, where the concentration of solutes outside the cell is higher than inside, causing the cells to shrink and become distorted. 
E) If a cell is placed in a hypotonic solution, water will enter the cell, not leaving.

Which Is a Correct Example of Tonicity