AP BIOLOGY

THE CELL

TRANSPORT INTO AND OUT OF THE CELL

Question [CLICK ON ANY CHOICE TO KNOW THE RIGHT ANSWER]
A cell with a 5% salt solution is placed into a beaker with a 10% salt solution. What will happen to the cell?
A
It will shrink
B
It will swell
C
No change
D
Cytolysis
Explanation: 

Detailed explanation-1: -The cell will shrink as it loses water to the salt solution.

Detailed explanation-2: -For example, a solution containing 10% salt is hypertonic. When a cell is placed in a hypertonic environment, there is a net movement of water to the outside of the cell (from the higher water environment inside the cell). The cell shrinks in response.

Detailed explanation-3: -Final answer: When the cell when it is placed in salt solution, it will shrinks.

Detailed explanation-4: -Water will move toward the area with the greatest solute concentration. For example, if you place a cell in a salty solution, the water in the cell will move out of the cell, causing the cell to shrink. A cell that is 1% salt is placed in a solution that is 3% salt.

Detailed explanation-5: -The water potential of the salt solution, being hypertonic, is less than that of the cytoplasm of the cell. Hence, water comes out of the cell through osmosis and protoplast shrinks. This process is called as plasmolysis.

There is 1 question to complete.