CB BIOLOGY
Modeling Membrane Transport
PURPOSE: learn/reinforce how different processes move materials in and out of cells by –
 Working with an assigned group to build a model demonstrating:
o Diffusion
o Osmosis
o Facilitated Diffusion
o Active Transport
o Endocytosis and Exocytosis
 Together with your group, present your model to the class
MATERIALS:
Phospholipid Bilayer Diagram Sheet
Construction Paper
Beads
Straws
Scissors
Tape
Glue
Sticks
Colored Pencils/Crayons
Markers
Butcher Paper
Links to Animations of the Different Processes
Cell Membrane Transport Information
Organizer
Biology Textbook
Class Notes
PROCEDURE:
1. Attach the Phospholipid Bilayer Diagram Sheet to the middle of a sheet of Butcher Paper.
2. Discuss with your group how you want to organize the diagram.
3. Discuss with your group how you want to divide up the work.
4. For each of the 5 membrane transport processes, illustrate on the diagram
a. The molecules/parts (you will need to draw some of the parts, either on construction
paper or computer paper)
b. Whether it is passive or active transport
c. How substances are moved across the membrane
d. Type of substance moved by the process
e. How energy is incorporated (if the process is active)
NOTE: for full credit, diagrams should be dynamic, rather than static. In other words, the
parts of the diagram should be movable,
THIS PART OF THE LAB SHOULD TAKE 40 MINUTES…….I will set a timer…..
STAY ON TASK!!!
5. When called by the teacher, come to the front of the room and present your model to the
class.
SCORING RUBRIC:
All rows worth up to 25 points for a total of 100 possible for the lab.
Diffusion
PARTS: accurate,
neat and colorful
PASSIVE/ACTIVE
Is energy from food
used
How Substances
move across the
membrane:
Is how the path thru
the membrane
accurate
TYPES OF
SUBSTANCE:
A complete list
How is energy
incorporated:
Is this illustrated
accurately
Model dymanic/
Movable:
TOTAL
Osmosis
Facilitated
Diffusion
Active
Transport
Endocytosis/
Exocytosis