The conversion of 3-phosphoglycerate (3PG) to 2- phosphoglycerate (2PG) is an im

Question

The conversion of 3-phosphoglycerate (3PG) to 2- phosphoglycerate (2PG) is an important cellular reaction because it is one of the steps in the glycolytic pathway 3 phosphoglycerate phosphoglycerate If the enzyme that catalyzes this reaction is added to a solution of 3PG at 25 C and pH 7.0, the equilibrium ratio between the two species will be 0.165 2-phosphoglycerate 0.165 T 3-phosphoglycerate Experimental values for the actual steady-state concentrations of these compounds in human red blood cells are 61 AuM for 3PG and 4.3 AM for 2PG Part D If conditions in the cell change such that the concentration of 3PG remains fixed at 61 uM but the concentration of 2PG begins to rise, how high can the 2PG concentration get before reaction below will cease because it is no longer thermodynamically feasible? Express your answer as an integer. AEG M My Answers Give Up Submit

Explanation / Answer

Keq = [2PG]/[3PG]

    0.165 = [2PG]/61

[2PG] = 61*0.165 = 10.065 micro M

concentration can be increased to 10.065 micro M .Beyond that the system is non spontaneouys.so that reaction do not takes place.

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