Cell Membrane and Transport Quiz

1. Which of the following is NOT a major part of the cell membrane?

• A. Proteins
• B. Nucleic Acids
• C. Carbohydrates

2. What structure is the arrow pointing to in the image below?

• A. Cholesterol
• B. Protein
• C. Phospholipid

3. The cell membrane maintains ___________ by controlling what enters and leaves cells.

• A. Homeostasis
• B. Temperature
• C. Structure

4. What is the function of cholesterol in the cell membrane?

• B. It works in cell identification
• C. It helps maintain the fluidity of the membrane

5. Some molecules pass through the cell membrane easily whereas other molecules cannot. What is the name of this property of the cell membrane?

• A. Impermeable
• B. Semipermeable
• C. Permeable

6. Which of these statements is true about active transport?

• B. It requires energy to occur
• C. It includes processes like simple and facilitated diffusion

7. Oxygen and carbon dioxide move into and out of the cell using ______ ?

• A. Exocytosis
• B. Protein pumps
• C. Diffusion

8. If a cell is placed in a hypertonic solution, what will happen?

• A. The cell will lose water and shrivel
• B. The cell will gain water and swell
• C. The cell will remain the same

9. A molecule moves into the cell using a channel protein. The molecule has moved from a higher concentration to a lower concentration. What type of transport is this?

• A. Osmosis
• B. Facilitated diffusion

10. A cell transports a very large molecule INTO the cell using energy. What type of transport is this?

• A. Protein pump
• B. Endocytosis