Cell Membrane Properties MCQ Quiz | Nerve-Muscle

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?