For example, in cardiac muscle cells, the concentration of K* in the ICF and ECF are typically about 135mM, and 4mM, respectively. [K*]ICF = 135mM, [K*]ECF = 4MM. Can you calculate a potential difference which results in the concentration of K+ ions between ICF and ECF

Chemistry
10th Edition
ISBN:9781305957404
Author:Steven S. Zumdahl, Susan A. Zumdahl, Donald J. DeCoste
Publisher:Steven S. Zumdahl, Susan A. Zumdahl, Donald J. DeCoste
Chapter1: Chemical Foundations
Section: Chapter Questions
Problem 1RQ: Define and explain the differences between the following terms. a. law and theory b. theory and...
icon
Related questions
Question
The contractions of the heart are controlled by electrical phenomena, as are nerve impulses throughout the
body. The pulses of electricity that cause the heart to beat result from a remarkable combination of
electrochemistry and the properties of semipermeable membranes.
Cell walls are membranes with variable permeability with respect to number of physiologically important ions.
Especially Na+, K+ and Ca²+. The concentrations of these ions are different for the fluids inside the cells
(intracellular fluid, ICF) and outside the cells (extracellular fluid, ECF). Changes in the relative concentration of
the ions in the ECF and ICF lead to changes in the emf of the voltaic cell.
For example, in cardiac muscle cells, the concentration of K* in the ICF and ECF are typically about 135mM, and
4mM, respectively. [K*]₁cf = 135mM, [K*]µ£cf = 4mM.
Can you calculate a potential difference which results in the concentration of K+ ions between ICF and ECF
using the Nernst equation at the physiological temperature of 37°C in mV for moving K* from ECF to ICF?
Transcribed Image Text:The contractions of the heart are controlled by electrical phenomena, as are nerve impulses throughout the body. The pulses of electricity that cause the heart to beat result from a remarkable combination of electrochemistry and the properties of semipermeable membranes. Cell walls are membranes with variable permeability with respect to number of physiologically important ions. Especially Na+, K+ and Ca²+. The concentrations of these ions are different for the fluids inside the cells (intracellular fluid, ICF) and outside the cells (extracellular fluid, ECF). Changes in the relative concentration of the ions in the ECF and ICF lead to changes in the emf of the voltaic cell. For example, in cardiac muscle cells, the concentration of K* in the ICF and ECF are typically about 135mM, and 4mM, respectively. [K*]₁cf = 135mM, [K*]µ£cf = 4mM. Can you calculate a potential difference which results in the concentration of K+ ions between ICF and ECF using the Nernst equation at the physiological temperature of 37°C in mV for moving K* from ECF to ICF?
Expert Solution
steps

Step by step

Solved in 3 steps with 2 images

Blurred answer
Knowledge Booster
Electrochemical Cells
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.
Similar questions
Recommended textbooks for you
Chemistry
Chemistry
Chemistry
ISBN:
9781305957404
Author:
Steven S. Zumdahl, Susan A. Zumdahl, Donald J. DeCoste
Publisher:
Cengage Learning
Chemistry
Chemistry
Chemistry
ISBN:
9781259911156
Author:
Raymond Chang Dr., Jason Overby Professor
Publisher:
McGraw-Hill Education
Principles of Instrumental Analysis
Principles of Instrumental Analysis
Chemistry
ISBN:
9781305577213
Author:
Douglas A. Skoog, F. James Holler, Stanley R. Crouch
Publisher:
Cengage Learning
Organic Chemistry
Organic Chemistry
Chemistry
ISBN:
9780078021558
Author:
Janice Gorzynski Smith Dr.
Publisher:
McGraw-Hill Education
Chemistry: Principles and Reactions
Chemistry: Principles and Reactions
Chemistry
ISBN:
9781305079373
Author:
William L. Masterton, Cecile N. Hurley
Publisher:
Cengage Learning
Elementary Principles of Chemical Processes, Bind…
Elementary Principles of Chemical Processes, Bind…
Chemistry
ISBN:
9781118431221
Author:
Richard M. Felder, Ronald W. Rousseau, Lisa G. Bullard
Publisher:
WILEY