8 Questions
What is the typical value of resting membrane potential?
-70mV
Which ions have a higher concentration inside the cell compared to outside?
K+ ions
What is responsible for establishing the Na+ and K+ concentration difference in cells?
Sodium-Potassium pump
Which type of cells are capable of self-generation of electrochemical impulses at their membranes?
Excitable cells
What is the main factor contributing to the establishment of membrane potential?
Unequal distribution of positive and negative charges
What does the Na, K ATPase pump do in maintaining cellular function?
Establishes concentration differences of Na+ and K+ ions
Which ion shows passive movement out of the cell at rest?
K+ ions
What happens to the inside of the membrane in the resting state?
-50mV
Learn about the Nernst Equation, which helps calculate the equilibrium potential for ions based on valence and concentration gradients across a membrane. Understand how the difference in ion channel permeability affects resting membrane potentials.
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