AP BIOLOGY

THE CELL

TRANSPORT INTO AND OUT OF THE CELL

Question [CLICK ON ANY CHOICE TO KNOW THE RIGHT ANSWER]
If you looked at red blood cells under a microscope and saw the blood cells exploded, what would you say happened?
A
The cells were placed in a hypotonic solution.
B
the solution was isotonic.
C
The solution was hypertonic.
Explanation: 

Detailed explanation-1: -If you looked at red blood cells under a microscope and saw the blood cells exploded, what would you say happened? The cells were placed in a hypotonic solution.

Detailed explanation-2: -When a red blood cell is placed in a hypotonic solution, there will be a net movement of free water into the cell. This situation will result in an increased intracellular volume with a lower intracellular solute concentration. The solution will end up with a higher overall solute concentration.

Detailed explanation-3: -When red blood cells are placed in pure water, water rapidly enters the cells by osmosis and causes the cells to burst by a phenomenon known as hemolysis.

Detailed explanation-4: -When a red blood cell is placed in a hypertonic solution, it shrinks as water is drawn out of the cell and into the surrounding solution. If the same blood cellis placed in a hypotonic solution, the blood cell grows in size. Blood cells in isotonic solutions do not shrink or swell.

Detailed explanation-5: -When a cell is placed in a hypotonic solution the concentration of water is much more in the solution than in the sap. Thus, water rushes into the cell from its higher concentration to its lower concentration thus making the cell highly inflated.

There is 1 question to complete.