1. Cell Membranes Practice Test

2. Question #1
A cell with a 65% salt concentration is placed in a 35% salt solution. What will happen to the size of the cell?
increase
decrease
stay the same

3. Question #2
If there is no concentration gradient, which of the following is true? Write in ALL that apply.
Cell will stay the same size
It is in an isotonic solution
The membrane will not let any materials through
Water will move in and out equally

4. Question #3
Which of the following uses transport proteins? Write in ALL that apply.
Endocytosis
Active transport
Moving from low to high concentration
Facilitated diffusion

5. Question #4
A cell with a 75% salt concentration is placed in a hypotonic solution. Which of the following are true? Write in ALL that apply.
The solution can be 25% water.
The solution can be 70% salt.
Water moves into the cell.
The cell starts to shrink.

6. Question #5 Which of the following is not true of passive transport?
Diffusion and osmosis are types
It requires a small amount of energy
It moves molecules down the concentration gradient.
All of the above are true

7. Question #6 Wastes leave the cell by Passive transport Osmosis
Exocytosis
Endocytosis

8. Question #7
Which of the following molecules can travel through the phospholipids? Write in all that apply.
Water
Proteins
Waste
Carbon dioxide
Glucose

9. Question #8
Which of the following are true of a hypotonic solution? Write in all that apply.
Occurs when you are dehydrated
Concentration of salt is higher inside the cell
Concentration of water is higher inside the cell
Water moves into the cell
Cell shrinks

10. Question #9
Which of the following are true of active transport? Write in all that apply.
Requires energy
Used to transport large molecules
May move small molecules
Moves down the concentration gradient

11. Question #10
If the concentration of salt is different between the inside and outside of the cell, what exists?
Isotonic solution
Concentration gradient
Hypertonic solution
Hypotonic solution
Not enough information given