Name_____________________
Date_____________________
Animation Handout Questions:
Instructions: Go to the website: http://www.nmmi.edu/academics/leadership/GenBio.htm
Click on the animations listed in this handout. Answer all of the questions using complete
sentences.
Animation: Membrane Movement
a. Press “Play”
1. What is this animation trying to show you about the Phospholipid By-layer (cell
membrane).
Animation: Membrane Structure
2. What are the 2 basic types of proteins in the cell membrane?
3. Label the diagram
4. What materials pass easily through the cell membrane?
5. What materials are able to pass through using only the “various proteins”?
1
6. Does this type of transport use energy? What do we call this type of transport?
7. How many layers are in the cell membrane?
8. Where are fibrous proteins located? What is their job?
9. What is the function of globular proteins?
10. What do glycoproteins do?
11. Cholesterol is also found in the cell membrane. What is its function?
12. What is the answer to question 10 of 10?
Animation: Active & Passive Transport
a. Click on “Passive Transport”
1. List the 3 types of Passive Transport?
2. Define “Diffusion”:
3. Where does diffusion occur?
4. Define “Concentration Gradient”:
5. Are there molecules that cannot pass through the cell membrane on their own?
6. If the molecule is passively transported across the membrane and down a
concentration gradient with the aid of special proteins, what is it called?
7. What do these proteins do?
8. Is energy being used for movement of these molecules?
2
9. Define “Osmosis”:
10. Define “Hypertonic”
11. Draw a picture of a Hypertonic and Hypertonic solution.
12. How long does movement occur across a concentration gradient?
b. You should have clicked on “Active Transport”
13. What is the name of the energy being used for Active Transport?
14. Why is this process important to living cells?
15. Does this go with or against the concentration gradient?
16. In the picture to the right
draw arrows indicating the
concentration gradient.
3
17. Does active transport go with or against the concentration gradient?
18. In the picture to the right show
an arrow along the path the ion
will take if using “active
transport”.
19. Define “endocytosis”:
20. Define “exocytosis”:
Animation: Hypo/Hyper/Isotonic Solutions
a. Under “Hypertonic Solution” Press Play
21. What happens to the water inside the cell?
22. What happens to the cell?
b. Under “Hypotonic Solution” Press Play
23. What happens to water inside the cell?
24. What happens to the cell?
c. Under “Isotonic Solution” Press Play
25. What happens to water inside the cell?
26. What happens to the cell?
4
Fill in the blank
27. Hypertonic Solutions contain a ____________________________________
relative to _________________________________________ ____________
(e.g. the cell's cytoplasm). When a cell is placed in a hypertonic solution, the
water ____________________________________ of the cell, causing the cell to
____________________________________
28. Hypotonic Solutions: contain a ____________________________________
relative to ____________________________________ (e.g. the cell's cytoplasm).
When a cell is placed in a hypotonic solution, the water
____________________________________ the cell, causing the cell to
____________________________________
29. Isotonic Solutions: contain the ____________________________________
compared to another solution (e.g. the cell's cytoplasm). When a cell is placed in
an isotonic solution, the water diffuses into and out of the cell
____________________________________. The fluid that surrounds the body
cells is isotonic.
30. The picture to the right is an amoeba
(micoscopic organism). Label the
organelles and define their function.
5
31. It is engulfing some food in the lower left-hand side. What type of “transport” is
this?
32. What organelle helps the amoeba digest/dissolve the food?
33. What is it called when the molecules that it cannot digest leave the cell?
Animation: Paramecium Removing Excess Water Video
Application Questions:
34. What is a contractile vacuole? If you use a source site it.
a. Source:
35. Without a contractile vacuole a Paramecium will explode. What is happening to
the Paramecium to make it necessary for it to have a contractile vacuole?
6