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505 Quiz 1 - Name Biochemistry 441 Section 505 Quiz 1 No...

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Name: ___________________________ UIN: _____________ Biochemistry 441 Section 505 Quiz 1 No calculators! Show all work. 1. Consider the net reaction: Glucose 1-phosphate Fructose 6-phosphate Using the following information: Glucose 1-phosphate Glucose 6-phosphate Δ G'° = - 7.3 kJ mol -1 Fructose 6-phosphate Glucose 6-phosphate Δ G'° = - 1.7 kJ mol -1 R = 8.315 J mol -1 K -1 T = 25°C (a) (2 points) What would the standard free energy be for the net reaction? Show your work and units! ANSWER (a) The last reaction will be reversed so that glucose 6-phosphate can be cancelled. The Δ G'° for that reaction will have to be multiplied by -1 to give + 1.7 kJ mol -1 . The net Δ G'° can then be calculated by adding the two Δ G'° from the two reactions. Glucose 1-phosphate Glucose 6-phosphate Δ G'° = - 7.3 kJ mol -1 Glucose 6-phosphate Fructose 6-phosphate Δ G'° = + 1.7 kJ mol -1 ¯¯¯¯¯¯¯¯¯¯¯¯¯¯¯¯¯¯¯¯¯¯¯¯¯¯¯¯¯¯¯¯¯¯¯¯¯¯¯¯¯¯¯¯¯¯¯¯¯¯¯¯¯¯¯¯¯¯¯ ¯¯¯¯¯¯¯¯¯¯¯¯¯¯¯¯¯¯¯¯¯¯¯¯¯ Glucose 1-phosphate
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