Cell Membrane Properties MCQ Quiz | Nerve-Muscle

Welcome to the Cell Membrane Properties MCQ Quiz, specifically designed for MBBS students studying Nerve-Muscle physiology. This quiz will test your understanding of the fundamental principles governing the structure and function of the cell membrane, a critical topic for understanding neuronal and muscular activity. You will encounter 25 questions covering the fluid mosaic model, various transport mechanisms like diffusion and active transport, the role of membrane proteins, and the establishment of the resting membrane potential. This comprehensive assessment will help you reinforce key concepts and identify areas for further study. After completing the quiz, you can submit your answers to see your score and review the correct solutions. You can also download all questions with their correct answers in a PDF format for offline revision.

1. The “fluid” nature of the fluid mosaic model of the cell membrane is primarily due to:

2. Which of the following transport processes across the cell membrane requires metabolic energy (ATP) directly?

3. The Na+/K+ ATPase pump is a classic example of:

4. The resting membrane potential of a typical neuron is primarily established and maintained by:

5. What is the primary role of cholesterol in the plasma membrane of animal cells?

6. The property of carrier-mediated transport that is not observed in simple diffusion is:

7. The Gibbs-Donnan equilibrium describes the distribution of:

8. Which molecule would most readily cross a pure phospholipid bilayer by simple diffusion?

9. In the Na+/glucose co-transporter (SGLT1) found in the intestine, glucose is transported into the cell against its concentration gradient. This process is an example of:

10. The term “amphipathic” as applied to phospholipids means that they:

11. Glycocalyx, the carbohydrate-rich layer on the outer surface of the cell membrane, is primarily involved in:

12. Which of the following is characteristic of an integral membrane protein?

13. The rate of simple diffusion across a membrane is directly proportional to all of the following EXCEPT:

14. The Na+/K+ pump transports:

15. Facilitated diffusion and active transport share which of the following characteristics?

16. Receptor-mediated endocytosis is used for the selective uptake of which of the following substances?

17. The Nernst potential for an ion is the membrane potential at which:

18. The resting membrane potential of a nerve fiber is approximately:

19. Which type of membrane protein is typically removed from the membrane by detergents but not by high-salt solutions?

20. The phenomenon where the transport of one solute is coupled to the transport of another solute in the opposite direction is called:

21. What is the direct effect of inhibiting the Na+/K+ ATPase pump on cell volume?

22. Which of the following best describes the permeability of a typical resting neuronal membrane?

23. Aquaporins are membrane proteins that facilitate the rapid movement of:

24. According to Fick’s law of diffusion, increasing which of the following would decrease the net rate of diffusion?

25. The release of neurotransmitters from a presynaptic terminal is an example of which process?