Cell Membranes and Transport Across Cell Membranes
Lectures from Bozeman Biology
Name_________________________________________________ Period______
Part 1 – Cell Membrane
1. Why are musk oxen like the cell membrane?
2. What are two major parts of the cell membrane
a.
b.
3. What are the functions of phospholipids?
4. What are the functions of proteins?
5. What is the function of the cell membrane?
6. How does oxygen and carbon dioxide move across the membrane?
7. Hoe do water and glucose move across the membrane?
8. What are 3 things you should remember about cell membranes?:
a. It is in _______________ cells.
b. It is __________________ in movement.
c. It is made up of two things: __________________ and _______________
Part 2 – Transport Across Cell Membranes
9. Does the movement of molecules to fill the container require energy?
10. What are the two forms of transport?
a.
b.
11. What is DIFFUSION and describe an example in living systems.
12. What is specific to OSMOSIS?
13. What is a specific type of diffusion that requires proteins called?
14. When the gray and black particles move, what determines the directions they go?
15. Where can diffusion be seen in living systems?
16. Define Osmosis.
17. Why does the slug shrivel up?
18. Describe the significance of Osmosis with respect to red blood cells in different
concentrations of water.
19. Define FACILITATED DIFFUSTION
20. What is the difference between diffusion and facilitated diffusion?
21. What is a concentrations gradient?
22. What is active transport?