Download A) Structure and Function of the Cell Membrane B) Cellular Transport

Topic 8: Cell Membrane
Name:
Date:
A) Structure and Function of the Cell Membrane
1. The cell membrane is ALSO KNOWN AS a _________________________________ or a
__________________________________ (allows certain substances in and out of the cell based on
____________ and ______________)
2. The three main FUNCTIONS of the cell membrane are
a. __________________ the contents of the cell from the __________________ environment
b. ________________ the ____________ of materials into and out of the __________
c. ________________ and ______________ to chemical ___________
3. The STRUCTURE of the cell membrane consists of _____________________ and ____________________
4. Materials that can EASILY AND READILY pass through the membrane are ____________ molecules such
as
.
Molecules such as _______________________________________________________________________
cannot pass through the membrane easily because they are TOO
B) Cellular Transport
Type of Transport
Active Transport
Concentration Gradient
Cellular Energy used?
Forms of this transport
Active only
___________________
(movement of molecules)
Passive Transport
AND
___________________
(movement of water only)
SUMMARY
1. A dead cell or a model cell (can/cannot) perform active transport because it (can/cannot) make ATP
2. When molecules move from a high to low concentration this is called (diffusion/active transport) which
(requires/does not require) ATP
3. If a hospital patient is given salt water in an IV, all of the patient’s cells will (swell/shrink) because water is
(moving into/moving out of) the cells
4. If a salt water organism is moved to a freshwater environment, all of the organism’s cells will (swell/shrink)
because water is (moving into/moving out of) the cells
5. If a cell receptor is denatured, it (can/cannot) receive the appropriate signal
6. If molecule A can easily pass through the membrane, it is probably (small/large) for example (water/starch). If
molecule B cannot easily pass through the cell membrane, it is probably (small/large) for example
(glucose/protein).
7. Animal cells, like red blood cells, burst when placed in distilled water unlike plant cells because plant cells have a
(cell wall/cell membrane), which protects them.
DIAGRAM REVIEW
1. Which process allows K+ and Mg ++ to move into the cell?
2. Which process allows Cl- to move into of the cell?
3. Which process allows K+ to move out of the cell?
4. This movement of molecules from A to B is the result of
______________________ while the movement of molecules from
B to A is the result of _____________________?
5. Which cell is using energy to move molecules? _____________
6. Which cell is not using energy to move molecules? ___________
7. Molecule A is entering the cell through ______________________
8. Molecule B is leaving the cell through _______________________
9. Molecule C cannot leave the cell because it’s _________________
10. What is the difference between cell A and cell B?
11. What process can process A do more of that process B will do less of?
12. What solution is cell A in?
13. What solution is cell B in?
14. What happened to the cellular contents going from cell A to cell B and
why?
15. Suspension ______ would cause the cell
membrane to shrink and water to be lost
16. Suspension ______ would cause the cell
membrane to swell and water would enter the
cell