BENG 130 hw - BE 130 Molecular Physical Chemistry...

Info icon This preview shows page 1. Sign up to view the full content.

View Full Document Right Arrow Icon
BE 130: Molecular Physical Chemistry Homework #4: due Thursday, February 7, 2008 Winter 2008 1. Tinoco Problem 1. A key step in the biosynthesis of triglycerides (fats) is the conversion of glycerol to glycerol-1-phosphate by ATP: ADP phosphate glycerol ATP glycerol Mg + + + 1 2 At a steady state in the living cell, (ATP) = 10 -3 M and (ADP) = 10 -4 M. The maximum (equilibrium) value of the ratio of (glycerol-1-P)/(glycerol) is observed to be 770 at 25ºC and pH 7. (a) Calculate K and Δ Gº’ 298 for the reaction. (b) Using the value of Δ Gº’ 298 for the reaction ADP + Pi Æ ATP + H 2 0, together with the answer to part (a), calculate Δ Gº’ 298 and K for the reaction (c) Glycerol + phosphate Æ glycerol-1-phosphate + H 2 0 2. Tinoco Problem 6. (a) Use the following equilibrium constants to calculate Δ Hº from the slope of ln K vs. (1/T) for the reaction 3-phosphoglycerate to 2-phosphoglycerate at pH 7. T (ºC) 0 20 30 45 K 0.1535 0.1558 0.1569 0.1584 (b) Calculate Δ Gº’ at 25ºC.
Image of page 1
This is the end of the preview. Sign up to access the rest of the document.

{[ snackBarMessage ]}

What students are saying

  • Left Quote Icon

    As a current student on this bumpy collegiate pathway, I stumbled upon Course Hero, where I can find study resources for nearly all my courses, get online help from tutors 24/7, and even share my old projects, papers, and lecture notes with other students.

    Student Picture

    Kiran Temple University Fox School of Business ‘17, Course Hero Intern

  • Left Quote Icon

    I cannot even describe how much Course Hero helped me this summer. It’s truly become something I can always rely on and help me. In the end, I was not only able to survive summer classes, but I was able to thrive thanks to Course Hero.

    Student Picture

    Dana University of Pennsylvania ‘17, Course Hero Intern

  • Left Quote Icon

    The ability to access any university’s resources through Course Hero proved invaluable in my case. I was behind on Tulane coursework and actually used UCLA’s materials to help me move forward and get everything together on time.

    Student Picture

    Jill Tulane University ‘16, Course Hero Intern