Cellular Transport Web Quest:
Name:
Date:
Period:
Objective:
By the end of the class students will diagram and explain the process of cellular transport,
both passive and active.
All links are provided, in order at: www.mrgittermann.weebly.com
Part 1:
1. Go to:
http://www.wiley.com/legacy/college/boyer/0470003790/animations/membrane_transport/membrane_tr
ansport.htm
2.
3.
Go through the tutorial.
What is cellular transport and why is it critical?
4.
5.
Click on “Membranes”.
What two characteristics of molecules do not allow them to pass through the membrane and why?
6.
7.
Click on the left side of the diagram.
How might a polar molecule like water pass through the membrane?
8. Click on “Diffusion/Osmosis”.
9. What causes non-polar molecules to move across the membrane? What is the driving force?
10. Use the continue button to advance through the animation.
11. Click on “Passive Transport”.
12. Click on the continue button to advance through the animation
13. What is the role of passive transporters?
14. Click on “Active Transport”.
15. What do active transporters do that is different from passive transporters?
Part 2:
1. Go to:
http://www.wisc-online.com/objects/index_tj.asp?objID=AP11003
2. Use the NEXT button to advance through the animation.
3. Why did the water go from side B to side A on the initial situation?
4.
What do you think isotonic, hypertonic, and hypotonic mean? Why is each important in regards to
cells?
Part 3:
1. Go to:
http://programs.northlandcollege.edu/biology/Biology1111/animations/transport1.html
2. Click on Passive Transport. Use the next button to advance through the animation.
3. What makes up the cell membrane? Diagram the lipid bilayer.
4.
What is diffusion? How does it relate to a concentration gradient?
5.
What three things can affect the rate of diffusion?
6.
How is facilitated diffusion different than normal diffusion? What macromolecule is involved?
7.
When will osmosis occur and for how long?
8.
How is active transport different than passive transport?
9.
Diagram and explain the following forms of active transport:
a. ION PUMPS –
b.
COTRANSPORT –
c. ENDOCYTOSIS -