Homework Help is Here – Start Your Trial Now!
Science
Chemistry
Calcium is an important intracellular messenger that results in various cellular responses. In muscle cells, calcium is sequestered within a specialized organelle called the sarcoplasmic reticulum (SR). Release of calcium causes muscle contraction, and the calcium must be re-uptaken into the SR via the sarcoplasmic reticulum Ca²+ ATPase (SERCA) before muscle cells can relax. Determine how many calcium ions can be pumped into the SR lumen from the cytosol per ATP hydrolysis via SERCA under the following conditions: [Ca2+] cytosol = 4.85 μM [Ca2+]lumen 12.8 μM = cytosol -90.0 mV lumen 0.00 mV What is the AG for the unfavorable transport of calcium (use 3 significant figures)? 14.9 kJ/mol How many ions can be transported per ATP hydrolysis (Use a whole number) (assume AG = AG°)? 1

Calcium is an important intracellular messenger that results in various cellular responses. In muscle cells, calcium is sequestered within a specialized organelle called the sarcoplasmic reticulum (SR). Release of calcium causes muscle contraction, and the calcium must be re-uptaken into the SR via the sarcoplasmic reticulum Ca²+ ATPase (SERCA) before muscle cells can relax. Determine how many calcium ions can be pumped into the SR lumen from the cytosol per ATP hydrolysis via SERCA under the following conditions: [Ca2+] cytosol = 4.85 μM [Ca2+]lumen 12.8 μM = cytosol -90.0 mV lumen 0.00 mV What is the AG for the unfavorable transport of calcium (use 3 significant figures)? 14.9 kJ/mol How many ions can be transported per ATP hydrolysis (Use a whole number) (assume AG = AG°)? 1

Chemistry
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...
See similar textbooks
icon
Related questions
Question
None
Calcium is an important intracellular messenger that results in various cellular responses. In muscle cells, calcium is sequestered within a specialized organelle called the sarcoplasmic reticulum (SR). Release of calcium causes muscle contraction, and the calcium must be re-uptaken into the SR via the sarcoplasmic reticulum Ca²+ ATPase (SERCA) before muscle cells can relax. Determine how many calcium ions can be pumped into the SR lumen from the cytosol per ATP hydrolysis via SERCA under the following conditions: [Ca2+] cytosol = 4.85 μM [Ca2+]lumen 12.8 μM = cytosol -90.0 mV lumen 0.00 mV What is the AG for the unfavorable transport of calcium (use 3 significant figures)? 14.9 kJ/mol How many ions can be transported per ATP hydrolysis (Use a whole number) (assume AG = AG°)? 1
Transcribed Image Text:Calcium is an important intracellular messenger that results in various cellular responses. In muscle cells, calcium is sequestered within a specialized organelle called the sarcoplasmic reticulum (SR). Release of calcium causes muscle contraction, and the calcium must be re-uptaken into the SR via the sarcoplasmic reticulum Ca²+ ATPase (SERCA) before muscle cells can relax. Determine how many calcium ions can be pumped into the SR lumen from the cytosol per ATP hydrolysis via SERCA under the following conditions: [Ca2+] cytosol = 4.85 μM [Ca2+]lumen 12.8 μM = cytosol -90.0 mV lumen 0.00 mV What is the AG for the unfavorable transport of calcium (use 3 significant figures)? 14.9 kJ/mol How many ions can be transported per ATP hydrolysis (Use a whole number) (assume AG = AG°)? 1
Expert Solution
steps

Step by step

Solved in 2 steps with 2 images

SEE SOLUTIONCheck out a sample Q&A here
Blurred answer
Similar questions
  • SEE MORE 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
SEE MORE TEXTBOOKS