Question

I need help with C through G please.

PeDUL AL U U ULI. Fly. NUVCel 2 8.) The gastric H pump found in the plasma membrane of gastric mucosa cells maintains a cytostolic concentration of K of 145 mM and an H concentration of 3.16 X 10 M. In the stomach, the concentration of K is 10 mM and the Hion concentration is 0.15 M. (A) (2 pts) What is the pH of the cytosol of gastric mucosa cells and what is the pH of the stomach? PH cytosol = -log[ ] pH stomach= -logi. [H] =-log. [3167100M] -104. [15 ] = 7.5 =834 (B) (3 pts) What is the change in free energy of transporting Imole of H from the cytosol into Stomach at 37 °C? F-96,500 J/mol V, R=8.3145 J/mol K. The transmembrane electrical potential is + 70 mV (Cytosol --Stomach). SG=RT en en Hinside + z FVm houtside + z. AC= 8.31453/mol 310k * en a lm. 1x 96 500 nov 0.070 AG = 46.379 kcal mol (C)(3 pts) What is the change in free energy of transporting 1 mole of K* from the stomach into Cytosol at 37 °C? F-96,500 J/mol.V, R-8.3145 J/mol K. The transmembrane electrical potential is – 70 mV (Stomach + Cytosol). (D) (3 pts) What is the change in free energy of transporting I mole of H' from the cytosol into Stomach and 1 mole of K from the stomach into Cytosol at 37 °C? F-96,500 J/mol V. R = 8.3145 J/mol K. The transmembrane electrical potential is - 70 mV (Stomach -- Cytosol). (E) (2 pts) Is this transport exergonic or endergonic? (F) (3 pts) Under cellular conditions in the gastric mucosa cell, the free energy change for the hydrolysis of ATP is around - 70 kJ/mol. What is the change in free energy of transporting 1 mole of H' from the cytosol into Stomach and 1 mole of K from the stomach into Cytosol at 37 °C? F- 96,500 J/mol V. R-8.3145 J/mol K. The transmembrane electrical potential is - 70 mV (Stomach - Cytosol ),when the transport is coupled with ATP hydrolysis? (G) (2 pts) What type of transport is this?

Answer 1

C.G. primary active transport

Stomach - Free energy cytosol OG 2 RT In Icon.kt outside thFuri L con-atonsidet. con Ace 8.314x310 x in ( om 145nm) ) + 1x a6500X0.070 Duz 8. 314831 + 1x46500X0.070 R28,314 kylmol T2372+273 - zolok. F296,500e. V2 -0.670 -67,55 nel mol 8612 8.314x310x in (0.0689) 2 9 2577.34*(-2.675) + [-67,550] 2 -6894.38-67,550 3- 74,444.38 by simplifying z-74.444 kcalmol