(b) The actual resting membrane potential of the cell is not only dependent on the individual components calculated above, but also relates to the overall permeability of the cell membrane to each of the ion types. It turns out that the majority of the total resting membrane potential for a cell (Atotal) is derived from the movement of K+ ions, accounting for ~90% of the total potential. In contrast the contribution from Na+ is ~ 1%, Ca2+ is ~1%, and for Cl- is ~8%. Given these values, and the individual A values calculated in part (a), estimate the overall membrane resting potential.
(b) The actual resting membrane potential of the cell is not only dependent on the individual components calculated above, but also relates to the overall permeability of the cell membrane to each of the ion types. It turns out that the majority of the total resting membrane potential for a cell (Atotal) is derived from the movement of K+ ions, accounting for ~90% of the total potential. In contrast the contribution from Na+ is ~ 1%, Ca2+ is ~1%, and for Cl- is ~8%. Given these values, and the individual A values calculated in part (a), estimate the overall membrane resting potential.
Human Physiology: From Cells to Systems (MindTap Course List)
9th Edition
ISBN:9781285866932
Author:Lauralee Sherwood
Publisher:Lauralee Sherwood
Chapter3: The Plasma Membrane And Membrane Potential
Section: Chapter Questions
Problem 2SQE: One of the important uses of the Nernst equation is in describing the flow of ions across plasma...
Related questions
Question
100%
use the values calculated (picture 2) to solve picture 1
Expert Solution
This question has been solved!
Explore an expertly crafted, step-by-step solution for a thorough understanding of key concepts.
This is a popular solution!
Trending now
This is a popular solution!
Step by step
Solved in 3 steps with 15 images
Recommended textbooks for you
Human Physiology: From Cells to Systems (MindTap …
Biology
ISBN:
9781285866932
Author:
Lauralee Sherwood
Publisher:
Cengage Learning
Human Physiology: From Cells to Systems (MindTap …
Biology
ISBN:
9781285866932
Author:
Lauralee Sherwood
Publisher:
Cengage Learning