LABORATORY REVIEW
DIFFUSION AND OSMOSIS
|
Question
[CLICK ON ANY CHOICE TO KNOW THE RIGHT ANSWER]
|
|
|
The cell will become plasmolyzed.
|
|
|
Water from inside the cell will go into the pure water outside of the cell.
|
|
|
It will swell and remain turgid as long as it is in the water.
|
|
|
It will eventually swell due to the high water intake until it bursts.
|
Detailed explanation-1: -An animal cell contains cytoplasm which has many nutrients and dissolved mineral. Therefore this solution becomes hypertonic to the surrounding water where no minerals or salts are present. Thus outside water is hypotonic to the cytoplasm of the cell. As a result, water moves inside the cell and the cell bursts.
Detailed explanation-2: -When an animal cell is kept in distilled water, the solute concentration inside the cell is more than outside. Water will enter inside the cell due to osmosis. As a result the cell will swollen up and becomes turgid. If the cell is placed inside water for longer period the cell may burst due to excess water pressure.
Detailed explanation-3: -Plant cells placed in a solution with a high water concentration compared to their contents (eg pure water) will gain water by osmosis and swell up until their cytoplasm and cell membrane are pushing against their cell wall.
Detailed explanation-4: -Once placed in a solution of 100 percent water, the water molecules in the solution will go from a high concentration to a low concentration in the red blood cell, causing the cell to swell and burst.
Detailed explanation-5: -Endosmosis is a process in which the water molecules move from outside of the cell of lower solute concentration to the inside of the cell of higher solute concentration through the cell membrane or cell wall. Due to endosmosis, both animal and plant cells will swell.