Concept explainers
To determine: Whether the diffusion of K+ down its concentration gradient would result in an electrical gradient or not.
Introduction: The nerve impulse conduction is based on the difference between the ion concentration and the electrical charge across the membrane. The plasma membrane of the neural cells is semipermeable. It is responsible for maintaining the difference in the cation and anion concentration across the cell membrane. The difference between the electric charges across the inside and outside surfaces of a cell membrane is called potential difference. The movement of the ions is dependent on the
To determine: The factor that will stop the net diffusion of K+.
Introduction: The difference between the electric charges across the inside and outside surfaces of a cell membrane is called potential difference. The movement of the ions is dependent onthe electrochemical gradient. Three different ions regulating the flow of signal across the neurons are K+, Na+ and Cl-.
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