Cell Membranes and Transport Worksheet
Explore the structure and function of cell membranes and various transport mechanisms, including passive and active transport.
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Cell Membranes and Transport
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Read each question carefully and answer to the best of your ability. Refer to the diagram provided for relevant questions.
Observe the diagram of the cell membrane below.
1. Which component of the cell membrane is primarily responsible for its selective permeability?
Proteins
Phospholipid bilayer
Carbohydrates
Cholesterol
2. Which type of transport moves substances against their concentration gradient and requires energy?
Simple diffusion
Facilitated diffusion
Osmosis
Active transport
3. The fluid mosaic model describes the cell membrane as a flexible structure with a bilayer embedded with various proteins.
4. is the movement of water across a selectively permeable membrane from a region of high water concentration to a region of low water concentration.
5. Passive transport requires the cell to expend energy.
True
False
6. Carrier proteins are involved in facilitated diffusion.
True
False
7. Briefly explain the primary function of the cell membrane.
8. Describe the difference between diffusion and osmosis.
Match each term on the left with its definition on the right.
9. Hypertonic solution
a. Solution with a lower solute concentration than inside the cell
10. Hypotonic solution
b. Solution with a higher solute concentration than inside the cell
11. Isotonic solution
c. Solution with the same solute concentration as inside the cell