Name
CELL MEMBRANE REVIEW
Terms:
Fluid Mosaic Model
Phospholipid
Selective Permeability
Passive Transport
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Concentration gradient
Dynamic Equilibrium
Diffusion
Facilitated Diffusion
o Carrier Protein
o Ion/Gated Channels
Osmosis
o Hypertonic
o Hypotonic
o Isotonic
o Osmotic Pressure
o Turgor Pressure
o Plasmolysis
o Turgid
o Wilt
o Lysed (cytolysis)
o Contractile Vacuole
Active Transport
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Sodium-Potassium Pump
Endocytosis
o Pinocytosis
o Phagocytosis
Exocytosis
o Protein Synthesis Pathway
Blood types
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Antigen
Antibodies
Agglutination
White blood cells
o Antigen/ Antibodies
Name
THE CELL MEMBRANE STRUCTURE
1. What did Singer and Nicholson discover?
2. What does fluid mosaic mean?
3. Draw a simplified version of the cell membrane. Include and label the following parts – phopholipid,
protein, cholesterol, carbohydrate chains, glycolipid, glycoprotein, cytoskeleton
4. Name and describe the four types of proteins in the cell membrane.
5. What type of protein determines blood type?
6. What type of protein does glucagon connect with on liver cells?
7. What type of proteins are an antigens and antibodies?
8. Why is mixing blood types dangerous?(Know the difference in antibodies & antigens for the blood
types) ** What is the main job of the cell membrane?
9. ** Describe selective permeability
State other characteristics/structures of the membrane that help it do its job.
THE CELL MEMBRANE FUNCTION
10. What is Brownian motion?
11. What are 2 factors that determine what can pass through the membrane and where?
12. List three molecules that can go directly through the bilayer. List three molecules that must pass
through a membrane protein.
13. List 2 characteristics of passive transport.
14. What are three passive transport processes?
15. What is concentration?
16. What is a concentration gradient?
17. Describe dynamic equilibrium.
18. What two important gases will pass through the cell membrane by diffusion?
19. What is the protein in red blood cells that transport oxygen and carbon dioxide?
20. What is osmosis?
21. If a cell is placed in a hypertonic solution it ____________________________. If it is placed in a
hypotonic solution it ________________________________. If in an isotonic solution it
__________________________________.
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22. A slightly shrunken plant cell is scientifically referred to as ________________________. A plant
cell that has lost MOST of its water is called _____________________________________. A
plant in a hypotonic solution is really full of water and is called
____________________________________.
23. Animal cells that have burst are called ____________________________. Animal cells that are
shrunken are called ___________________________.
24. Describe one adaptation of organisms such as protists to a hypotonic environment.
25. How is facilitated diffusion different from regular diffusion?
26. What three substances may pass through the membrane by facilitated diffusion?
27. What are two characteristics of active transport?
28. What is the difference between active transport and facilitated diffusion?
29. What is the similarity between active transport and facilitated diffusion?
30. What is the difference between endocytosis and exocytosis?
31. Give an example of endocytosis:
32. Give an example of exocytosis: