Membrane Structure and Function Worksheet
Explore the structure and function of cell membranes with this Grade 11 biology worksheet covering the fluid mosaic model, transport mechanisms, and key components.
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Membrane Structure and Function
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Read each question carefully and answer to the best of your ability. Refer to your knowledge of cell membrane structure and function.
1. Which component of the cell membrane is primarily responsible for its fluidity?
Proteins
Cholesterol
Carbohydrates
Phospholipids
2. The movement of water across a selectively permeable membrane is called:
Active transport
Facilitated diffusion
Osmosis
Diffusion
3. The model describes the cell membrane as a mosaic of components that are able to move freely.
4. Integral proteins that span the entire membrane are called proteins.
5. Describe the primary function of the cell membrane.
6. Explain the difference between passive transport and active transport across the cell membrane.
7. Label the indicated components of the cell membrane in the diagram below.
A:
B:
C:
D:
8. The cell membrane is impermeable to all substances.
True
False
9. Facilitated diffusion requires energy in the form of ATP.
True
False