Download Chapter 3 Review Questions

Do you understand the basic parts of the cell membrane?
Can you model it?
Objective: Become familiar with the structure and function of the cell membrane.
Use modeling clay to construct a 3D model of cell membrane structures. Use color
and labels to distinguish key elements (20 pts. – 10 for model and 10 for diagram
and questions)
Materials: Colored modeling clay
Key elements that you should include:
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Phospholipids (polar head, non-polar tails)
Integral proteins
Peripheral proteins
Glycoproteins (includes carbohydrates)
Cholesterol
Create a color coded key and diagram of your cell membrane system in the space
below:
Questions:
Why is the cell membrane sometimes referred to as a fluid mosaic?
What part of the membrane acts like a fluid and what part(s) make it a mosaic?
How do the properties of a lipid help explain the structure of a cell membrane?
Why do you think it is important cell membranes are selectively permeable?