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PART A: In a liver cell at 37 ?C the concentrations of both phosphate and glucose are...

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Chemistry

PART A:

In a liver cell at 37 ?C the concentrations of both phosphateand glucose are normally maintained at about 5 mM each. What wouldbe the equilibrium concentration of glucose-6-phosphate,according to the above data?

ANS:

Equilibrium concentration =

1.2×10?7 M

PART B:

This very low concentration of the desired product would beunfavorable for glycolysis. In fact, the reaction is coupled to ATPhydrolysis to give the overall reaction

ATP+glucose?glucose?6?phosphate+ADP+H+

What is ?G?? for the coupled reaction?

Express your answer to three significant figures and include theappropriate units.

ANS: -18.4 kJ/mol

PART C:

If, in addition to the constraints on glucose concentrationlisted previously, we have in the liver cell ATP concentration = 3mM and ADP concentration = 1 mM, what is the theoreticalconcentration of glucose-6-phosphate at equilibrium at pH=7.4 and37 ?C? Express your answer to three significant figures and includethe appropriate units.

NEED HELP WITH PART C

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