37. The sodium-glucose transporter transports both glucose and sodium into the cell. The sodium concentration outside the cell is 175 mM and inside the cell it is 9 mM, which leads to a membrane potential of -50 mV. The concentration of glucose is 100 mM inside the cell and 75 mM outside the cell. (AG,= RT ln (C₂/C₁) + ZFY, R=8.315 J/mol*K; T-310K; F (Faraday constant)-96,480 J/V) a. ( Calculate the free energy of transport for sodium into the cell. b. ( Calculate the free energy of transport for glucose into the cell. C. 3) Which is more favorable, transport of sodium or transport of glucose into the cell? Explain in terms of relative concentrations. d. ( ) By what mechanism does the sodium-glucose transporter work (e.g. simple diffusion, primary active, etc)? How do you know?
37. The sodium-glucose transporter transports both glucose and sodium into the cell. The sodium concentration outside the cell is 175 mM and inside the cell it is 9 mM, which leads to a membrane potential of -50 mV. The concentration of glucose is 100 mM inside the cell and 75 mM outside the cell. (AG,= RT ln (C₂/C₁) + ZFY, R=8.315 J/mol*K; T-310K; F (Faraday constant)-96,480 J/V) a. ( Calculate the free energy of transport for sodium into the cell. b. ( Calculate the free energy of transport for glucose into the cell. C. 3) Which is more favorable, transport of sodium or transport of glucose into the cell? Explain in terms of relative concentrations. d. ( ) By what mechanism does the sodium-glucose transporter work (e.g. simple diffusion, primary active, etc)? How do you know?
Chemistry
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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
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Transcribed Image Text:37. The sodium-glucose transporter transports both glucose and sodium into the cell. The sodium concentration outside
the cell is 175 mM and inside the cell it is 9 mM, which leads to a membrane potential of -50 mV. The concentration
of glucose is 100 mM inside the cell and 75 mM outside the cell. (AG,= RT ln (C₂/C₁) + ZFY, R=8.315 J/mol*K;
T=310K; F (Faraday constant)-96,480 J/V)
a. (Calculate the free energy of transport for sodium into the cell.
b. ( Calculate the free energy of transport for glucose into the cell.
C.
3) Which is more favorable, transport of sodium or transport of glucose into the cell? Explain in terms of
relative concentrations.
d. ( ) By what mechanism does the sodium-glucose transporter work (e.g. simple diffusion, primary active, etc)?
How do you know?
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