Given the côncentration of Ca²" and the electrical potential acroSs the plasma membrane of an olfactory neuron below, what is the free energy for the transport a mole of Ca2+ from the extracellular matrix into the cytosol? Concentration of Ca2+ ion is 1.4 mM in extracellular fluid, and 0.20 µM (micromolar) in cytosol. The membrane electrical potential is 70 mV, with the cytosol more negative than the extracellular matrix. AG: = (RT In (C2/C1) + ZF4¥ R = 8.315 J(mol K) F = 96,480 J(V mol) T= 298K or 25°C Watch out for units. State if the electrical potential gradient for transport of Ca2+ from extracellular matrix into the cell is negative or positive, and explain why in 1 sentence. а. b. Using the formula provided, plug in correct values for each constant and variable in the formula, making sure to convert units correctly so that it can be used in the formula. Don't forget to use answer from part a. above to change your calculation if necessary. AGt RT In (C2/C1) + ZF4Y %3D AG: = С. Do the arithmetic to get to the correct value for AGt. AGt =
Given the côncentration of Ca²" and the electrical potential acroSs the plasma membrane of an olfactory neuron below, what is the free energy for the transport a mole of Ca2+ from the extracellular matrix into the cytosol? Concentration of Ca2+ ion is 1.4 mM in extracellular fluid, and 0.20 µM (micromolar) in cytosol. The membrane electrical potential is 70 mV, with the cytosol more negative than the extracellular matrix. AG: = (RT In (C2/C1) + ZF4¥ R = 8.315 J(mol K) F = 96,480 J(V mol) T= 298K or 25°C Watch out for units. State if the electrical potential gradient for transport of Ca2+ from extracellular matrix into the cell is negative or positive, and explain why in 1 sentence. а. b. Using the formula provided, plug in correct values for each constant and variable in the formula, making sure to convert units correctly so that it can be used in the formula. Don't forget to use answer from part a. above to change your calculation if necessary. AGt RT In (C2/C1) + ZF4Y %3D AG: = С. Do the arithmetic to get to the correct value for AGt. AGt =
Human Anatomy & Physiology (11th Edition)
11th Edition
ISBN:9780134580999
Author:Elaine N. Marieb, Katja N. Hoehn
Publisher:Elaine N. Marieb, Katja N. Hoehn
Chapter1: The Human Body: An Orientation
Section: Chapter Questions
Problem 1RQ: The correct sequence of levels forming the structural hierarchy is A. (a) organ, organ system,...
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Answer parts b and c please
Transcribed Image Text:Given the concentration of Ca2+ and the electrical potential across the plasma membrane of an
olfactory neuron below, what is the free energy for the transport a mole of Ca2+ from the
extracellular matrix into the cytosol?
Concentration of Ca2+ ion is 1.4 mM in extracellular fluid, and 0.20 µM (micromolar) in cytosol.
The membrane electrical potential is 70 mV, with the cytosol more negative than the extracellular
matrix.
AG: = (RT In (C2/C1) + ZFA¥
R= 8.315 JUmol K)
F = 96,480 J(V mol)
T= 298K or 25°C
Watch out for units.
State if the electrical potential gradient for transport of Ca2+ from extracellular matrix into the
cell is negative or positive, and explain why in 1 sentence.
а.
b. Using the formula provided, plug in correct values for each constant and variable in the
formula, making sure to convert units correctly so that it can be used in the formula. Don't
forget to use answer from part a. above to change your calculation if necessary.
AGt = RT In (C2/C1) + ZFAY
%3D
AGt =
+
с.
Do the arithmetic to get to the correct value for AGt.
AGt =
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