exam 4 Spring 2013 - 3 PM Section Exam 4 BCH 463 Spring...

Info icon This preview shows pages 1–3. Sign up to view the full content.

3 PM Section Exam 4 BCH 463 Spring 2013 29 April NAME______Key_______ 1. In the drawing on the right, valinomycin is in the conformation expected for the ionophore 1) Empty inside, not binding a K + ion 2) in the gas phase 3) in the low dielectric phase of the interior of a membrane and binding a K + ion 4) both 1 and 3 2. Given the electrochemical data NAD . + H + + e - = NADH ! 0 = 0.30 V NADH .+ + e - = NADH ! 0 = 0.93 V Calculate a value for " G 0 for NADH .+ = NAD . + H + 1) 0.63 eV 2) 1.23 eV 3) -1.23 eV 4) - 0.63 eV 5) 3. k cat /K M is a second order rate constant telling us 1) the equilibrium constant for the reaction 2) the fraction of collisions of substrate with enzyme that lead to product 3) the reaction is in the Marcus inverted region 4) none of these 4. In plants 8 photons driving the two photosystems would be expected to pump __ protons across the thylakoid membrane using the cytochrome b 6 f complex. 1) 16 2) 4 3) 8 4) None of these 5. Consider a vertical membrane separating two compartments. A quinone is reduced to a quinol at the membrane – water interface on the left side (Q + 2e - + 2H + = QH 2 ) and QH 2 crosses the membrane and is oxidized on the right side at the membrane – water interface back to the quinone form. The ratio H + transported /e - is 1) 0 2) 1 3) 2 4) none of these 6. In algae photosynthesis, would NADPH synthesis be sensitive to an uncoupler? 1) Yes 2) No 3) Depends on the algae
Image of page 1

Info icon This preview has intentionally blurred sections. Sign up to view the full version.

7. An energy coupling membrane, one that couples PMF to some process, must form an enclosed volume so that there is an “inside” volume and an “outside”. 1) false 2) true 3) sometimes, but not always 8. The water oxidizing site of PSII is 1) On the opposite side of the membrane from the F 1 subunit of F 1 /F 0 ATP synthase 2) On the same side of the membrane as the F 1 subunit of F 1 /F 0 ATP synthase 3) Depends on the species of bacteria 4) Depends on the species of archaea 9. Nigericin is a
Image of page 2
Image of page 3
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