Cell Transport Review Sheet.
Part I – Label the following:
A.
C.
D.
E.
B.
Part II – Fill in the blank
1. The process of diffusion causes molecules to move from (low to high or high to low)
concentrations until a state of ____________________ is reached.
2. The diffusion of water is known as __________________.
3. ________________ diffusion uses proteins to bring materials into the cell from high to
low concentration, requiring no cell energy.
4. Diffusion, osmosis and facilitated diffusion are all examples of _____________ transport,
in which the cell does not need to use any energy.
5. During active transport molecules move from an area of ___________ concentration to
an area of ____________ concentration.
6. ________________ is a form of active transport in which the cell sends materials out of
the cell using vesicles, small storage structures that fuse to the cell membrane.
7. _________________ is the reverse of the process named in # 6. The cell membrane
wraps around a substance to be brought into the cell forming a vesicle around it.
8. There are two types of endocytosis: __________________ which involves bringing
solids or large molecules into the cell, and _________________, which deals with
bringing liquids or very small molecules into the cell.
9. In the pictures below each “X” represents a molecule of water. In each diagram indicate
which direction water will be moving (mostly in, mostly out, or equally in and out).
XXXXX
XXXXX
A.
XXXXX
XX
XXXXX
B.
XXXXX
XXXXX
C.
10. Look at each of the pictures below. Identify whether the picture represents a plant cell in
hypertonic, hypotonic or isotonic solutions.
A.
B.
C.
11. Look at each of the pictures below. Identify whether the picture represents a blood cell in
fresh water (small amount of solute), distilled water (100% water) or salt water (lots of
solute).
A.
B.
C.
12. Would a potato left in salt water lose or gain water? Think about what is different about
the amount of water inside and outside the cell, and what state were the potato cells
trying to reach?
13. How do facilitated diffusion and active transport differ?
14. Is osmosis an example of diffusion or active transport?
15. Why does water need a special protein channel (called an aquaporin) to move into the
cell through the phospholipid bilayer.
16. Draw a picture of a phospholipid below and label the non-polar tails, and polar head.
17. Passive transport moves materials with/against the concentration gradient using
energy/no energy.
18. Active transport moves materials with/against the concentration gradient using energy/no
energy.
19. State how each of the molecules/ions listed below would move through the plasma
membrane (pick from: PC= protein channel or SD = simple diffusion).
a.
b.
c.
d.
e.
f.
Glucose
Water
Oxygen
Na+
K+
Cl-
__________
__________
__________
__________
__________
__________
g. CO2
___________