Draw the membrane voltage changes that occur during a typical action potential. Make sure to label the resting membrane voltage (VR), equilibrium potential of Na+ (ENa+) and K+ (EK+), and the action potential threshold (T). Label the following phases of the action potential: Resting Potential, Rising Phase, Falling Phase, Undershoot, and Return to Resting Potential. Assume the following ion concentrations: Inside the cell: 10 mM Na+; 100 mM K+ Outside the cell: 100 mM Na+; 10 mM K+ Relative Conductance of Na+: 1; Relative Conductance of K+: 9
Draw the membrane voltage changes that occur during a typical action potential. Make sure to label the resting membrane voltage (VR), equilibrium potential of Na+ (ENa+) and K+ (EK+), and the action potential threshold (T). Label the following phases of the action potential: Resting Potential, Rising Phase, Falling Phase, Undershoot, and Return to Resting Potential. Assume the following ion concentrations: Inside the cell: 10 mM Na+; 100 mM K+ Outside the cell: 100 mM Na+; 10 mM K+ Relative Conductance of Na+: 1; Relative Conductance of K+: 9
Chapter18: Introduction To Electrochemistry
Section: Chapter Questions
Problem 18.2QAP
Related questions
Question
Transcribed Image Text:Draw the membrane voltage changes that occur during a typical action potential. Make sure to label the resting
membrane voltage (VR), equilibrium potential of Na+ (ENa+) and K+ (Ek+), and the action potential threshold (T).
Label the following phases of the action potential: Resting Potential, Rising Phase, Falling Phase, Undershoot, and
Return to Resting Potential. Assume the following ion concentrations:
Inside the cell: 10 mM Na+; 100 mM K+
Outside the cell: 100 mM Na+; 10 mM K+
Relative Conductance of Nat: 1; Relative Conductance of K+: 9
Expert Solution
Step 1
The action potential starts when the membrane potential of the cell reaches the threshold. The rising phase is the increase in the potential from negative to positive which reaches the maximum positive value (overshoot) followed by falling phase when the potential again starts to decrease, reaches undershoot which is more negative than the resting potential. This is further followed by return to te resting potential.
Step by step
Solved in 2 steps with 1 images
Knowledge Booster
Learn more about
Need a deep-dive on the concept behind this application? Look no further. Learn more about this topic, chemistry and related others by exploring similar questions and additional content below.Recommended textbooks for you
Chemistry: Principles and Practice
Chemistry
ISBN:
9780534420123
Author:
Daniel L. Reger, Scott R. Goode, David W. Ball, Edward Mercer
Publisher:
Cengage Learning
Principles of Modern Chemistry
Chemistry
ISBN:
9781305079113
Author:
David W. Oxtoby, H. Pat Gillis, Laurie J. Butler
Publisher:
Cengage Learning
Chemistry: Principles and Practice
Chemistry
ISBN:
9780534420123
Author:
Daniel L. Reger, Scott R. Goode, David W. Ball, Edward Mercer
Publisher:
Cengage Learning
Principles of Modern Chemistry
Chemistry
ISBN:
9781305079113
Author:
David W. Oxtoby, H. Pat Gillis, Laurie J. Butler
Publisher:
Cengage Learning
Chemistry: The Molecular Science
Chemistry
ISBN:
9781285199047
Author:
John W. Moore, Conrad L. Stanitski
Publisher:
Cengage Learning
Principles of Instrumental Analysis
Chemistry
ISBN:
9781305577213
Author:
Douglas A. Skoog, F. James Holler, Stanley R. Crouch
Publisher:
Cengage Learning
General Chemistry - Standalone book (MindTap Cour…
Chemistry
ISBN:
9781305580343
Author:
Steven D. Gammon, Ebbing, Darrell Ebbing, Steven D., Darrell; Gammon, Darrell Ebbing; Steven D. Gammon, Darrell D.; Gammon, Ebbing; Steven D. Gammon; Darrell
Publisher:
Cengage Learning