IB Biology – 2.4 Membranes
Assignment: Draw and label a diagram to show the structure of a plasma
membrane. You should include the following in your diagram:
1. Phospholipid bilayer (include a label for the hydrophilic heads and
hydrophobic tails)
2. Glycoproteins (which are carbohydrate chains attached to
peripheral proteins)
3. Cholesterol
4. Integral proteins
5. Cytoplasm
6. Extracellular fluid
In addition to your drawing answer the following question: Why is the plasma
membrane considered a fluid mosaic model?
*Proper heading goes on the back of your paper
IB Biology – 2.4 Membranes
Assignment: Draw and label a diagram to show the structure of a plasma
membrane. You should include the following in your diagram:
1. Phospholipid bilayer (include a label for the hydrophilic heads and
hydrophobic tails)
2. Glycoproteins (which are carbohydrate chains attached to
peripheral proteins)
3. Cholesterol
4. Integral proteins
5. Cytoplasm
6. Extracellular fluid
In addition to your drawing answer the following question: Why is the plasma
membrane considered a fluid mosaic model?
*Proper heading goes on the back of your paper