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1. Which does NOT involve movement of molecules from high concentration to lower?
A
endocytosis
B
osmosis
C
facilitated diffusion
2. Two types of passive transport are:
A
endocytosis and diffusion
B
diffusion and facilitated diffusion
C
exocytosis and osmosis
3. A patient arrives in the hospital extremely dehydrated. In order to fill his cells with fluid, he should receive a(n) _______ intravenous drip.
A
isotonic
B
hypertonic
C
hypotonic
4. A solution that contains fewer solutes than the cell is:
A
hypotonic
B
isotonic
C
hypertonic
5. The movement of fluid through the cell membrane from a high pressure area to a low pressure area is called
A
filtration
B
active transport
C
exocytosis
6. Two types of endocytosis are:
A
solute pumping and active transport
B
phagocytosis and pinocytosis
C
active transport and facilitated diffusion
7. Which one is NOT true about cell membranes
A
it allows water soluble molecules to pass through easily
B
it contains proteins for specialized functions
C
it consists of a phospholipid bilayer
8. a cell ingest bacteria. What type of transport is this?
A
diffusion
B
exocytosis
C
endocytosis
9. Which is not an active transport process?
A
exocytosis
B
sodium potassium pump
C
facilitated diffusion
10. Facilitated diffusion requires
A
ATP
B
protein channels
C
vacuoles
11. A cell would plump with water and possibly lyse in which solution?
A
hypotonic
B
hypertonic
C
isotonic
12. Diffusion occurs because:
A
molecules are attracted to each other
B
cellular energy pumps molecules across a membrane
C
molecules constantly move and collide
13. Diffusion of water through a selectively permeable membrane is called?
A
osmosis
B
pinocytosis
C
facilitated diffusion
14. An RBC surrounded by fresh water will burst because:
A
water will move out of the cell
B
solutes will move into the cell
C
water will move into the cell
15. Which requires energy?
A
diffusion
B
osmosis
C
active transport
16. Which types of molecules will easily pass through the fatty acid chains in the cell membrane?
A
hydrophobic
B
hydrophilic
C
polar
17. How is the phospholipid bilayer oriented?
A
heads face inward
B
Tails face each other
C
head and tails alternate directions
18. During diffusion molecules tend to move
A
the direction doesn't depend on concentration
B
down the concentration gradient
C
against the concentration gradient
19. When the concentration of a solute is the same throughout the system, it has reached______
A
equilibrium
B
osmosis
C
maximum concentration
20. Phagocytosis, pinocytosis, and exocytosis are all
A
facilitated
B
passive
C
active
21. glucose enters a cell from high to low concentration by
A
facilitated diffusion
B
simple diffusion
C
osmosis
22. Which is NOT a passive transport?
A
sodium potassium pump
B
facilitated transport
C
osmosis
23. Placing an RBC in a hypertonic solution will cause the cell to
A
expand
B
shrivel, crenate
C
no change
24. Gases like oxygen and carbon dioxide move freely across a cell membrane by
A
diffusion
B
ion channels
C
endocytosis