Physiology Quiz - General Principles of Membrane Transport - Part 1
Transport of ions and molecules across biological membranes may occur by passive or active mechanisms and, indeed, membrane transport mechanisms form the basis for many important physiological processes. Test your basic knowledge of membrane transport by taking this simple quiz.
(1) Which one of the following is NOT consistent with secondary active transport?
(2) Which of the following membrane proteins is responsible for generating and maintaining the Na+ and K+ concentration gradients across the plasma membrane of most mammalian cells?
(3) Na+, and K+, Ca2+, and Cl− permeation through their respective ion channels represents an example of:
(4) With respect to concentration gradients, passive transport is:
(5) With respect to concentration gradients, active transport is:
(6) Movement of ions through ion channels represents an electrogenic process.