Cell Membrane and Transport Team – Game – Tournament Questions
Cell Membrane and Transport Team – Game – Tournament Questions
1. State two primary functions of the cell membrane.
2. Name four components of the cell membrane?
3. Why is the cell membrane described as a “fluid mosaic”?
4. How do phospholipids arrange themselves in the membrane?
5. Which component of the phospholipids is hydrophilic?
6. Which component of the phospholipids is hydrophobic?
7. What is the function of channel and carrier proteins?
8. How is a carrier protein different from a channel protein?
9. What is the purpose of a cell recognition protein?
10. What is meant by the phrase “selectively permeable”?
11. When molecules move from regions of high concentration to regions of low concentration, they do so by _______________ transport.
12. When molecules move from regions of low concentration to regions of high concentration, they do so by _______________ transport.
13. Why do molecules like water, oxygen and carbon dioxide move readily across the membrane, but starch molecules do not?
14. Glucose moves across the membrane by means of ______________ .
15. Water moves across the membrane by means of _______________.
16. Facilitated diffusion requires a __________________ for molecules to cross the membrane.
17. Active transport requires a ____________________ and ______________ for molecules to cross the membrane.
18. If a cell has more solute in itself than the surrounding solution, the cell is said to be ________________ to the solution.
19. If a cell has less solute in itself than the surrounding solution, the cell is said to be ________________ to the solution.
20. If a cell has equal solute in itself than the surrounding solution, the cell is said to be ________________ to the solution.
21. Water always moves into a _________________ solution.
22. If too much water moves into an animal cell, the animal cell may …?
23. If too much water leaves an animal cell, the animal cell may …?
24. Water always moves from a _______water potential to a _______ water potential.
25. Which of the following molecules are able to move across the dialysis bag membrane: glucose, iodine, starch, sucrose, water?
26. Which cross membrane transport mechanisms are purely physical phenomenon: active transport, diffusion, facilitated diffusion, osmosis
27. Can ions move across the membrane by simple diffusion? Why?
28. The sodium-potassium pump is an example of what type of cross membrane transport?
29. How are large polymer molecules brought into the cell?
30. How are large polymer molecules released from the cell?
31. The movement of a large food particle into the cell is specifically called…?
32. The movement of droplets of liquid into the cell is specifically called …?
33. What is the general name of a protein that is found only on the surface of the cell membrane in the region of the phospholipids heads?
34. What is the general name of a protein that crosses the entire width of the cell membrane?
35. What role do carbohydrate chains have when they are attached to proteins on the cell membrane?
36. In general, ions, charged molecules and macromolecules move across the membrane by means of …?
37. The scent of perfume moving through the air is an example of …?
38. Hypotonic animal cells placed in a solution lose/gain mass?
39. Hypertonic animal cells placed in a solution lose/ gain mass?
40. Name the molecule that provides energy for active transport?
Cell Membrane and Transport Team – Game – Tournament Answers
1. Maintain integrity/ boundary of cell. Regulate movement of molecules into/ out of cell.
2. phospholipids, protein, cholesterol, carbohydrate chains
3. Fluid= phospholipids bilayer. Mosaic= proteins embedded in phospholipids
4. Into a bilayer with polar heads pointing out and non-polar tails pointing in
5. Head
6. Tails
7. To allow molecules to move across the membrane through them
8. Carrier proteins must change their shape in order to move the molecule across the membrane; channel proteins retain their original shape when moving molecules across the membrane
9. Cell to cell communication
10. Only certain molecules are allowed across the cell membrane and others are prevented from crossing
11. passive
12. active
13. they are small and starch is large
14. facilitated diffusion
15. osmosis
16. protein
17. protein and ATP/energy
18. hypertonic
19. hypotonic
20. isotonic
21. hypertonic
22. lyse
23. crenate
24. high( low
25. glucose, iodine, water
26. diffusion, osmosis
27. no, charge prevents them – need a protein doorway
28. active transport
29. endocytosis
30. exocytosis
31. phagocytosis
32. pinocytosis
33. peripheral protein
34. integral protein
35. recognition
36. active transport
37. diffusion
38. lose mass
39. gain mass
40. ATP
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