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Osmosis and Diffusion Lab Quiz
Osmosis and Diffusion Lab Quiz
1. In the process of diffusion, molecules move from an area of _____________ concentration to an area of ______________________ concentration.
low; high
low; zero
high; low
zero; low
zero; high
2. Onion cells are typically 95% water. If you put an onion cell in a 5% saline solution, you would expect the cell to __________________________.
Not change in size
Shrink
Swell
Explode
Expand
3. In which direction will water move if a cell is placed into a hypertonic solution?
Into the cell
Out of the cell
There would be no net movement of water.
Water cannot enter or leave a cell.
4. What is the purpose of iodine in the lab?
To serve as a control
To indicate the presence of glucose
To react with the dialysis tubing
To indicate the presence of starch
To color the solution red
5. Agitation decreases the rate of diffusion.
True
False
6. All types of diffusion require the input of energy.
True
False
7. Osmosis is the diffusion of water.
True
False
8. In the diagram above, the cell is hypertonic to the environment.
True
False
9 In the diagram above, will water move into the cell via osmosis?
True
False
10. In the diagram above, will sodium ions move into the cell via osmosis?
True
False