Question

The conversion of G6P to fructose-6-phosphate (F6P), catalysed by phosphohexose isomerase (PI), is thermodynamically unfavourable under standard conditions. AG 1.7 k/mol a) Using the data below calculate the mass action ratio (Q) and the AG at 37°C for each pair of G6P and F6P concentrations. [G6P] (HM) [F6P] (HM) Q AG at 37°O 0.8 3.3 2.1 1.2 2.6 0.1 1.3 2.2 2 marks b) Plot your calculated AG values against the natural log (In) of Q. Remember to clearly label the axes and give the graph a title. Fit an equation to the data to visualise the relationship between lnQ and ?G. 3 marks

Answer 1

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