2009_Practice_Quiz_on_Ch_22

2009_Practice_Quiz_on_Ch_22 - BMB 402H Spring 2009 Practice...

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Unformatted text preview: BMB 402H Spring 2009 Practice Quiz on Chapter 22 NAME: ______________________________________________ 1. Based on the redox-loop mechanism, how many protons would be translocated from the matrix of a mitochondrion to the inter-membrane space by Complex IV? Briefly explain your answer. (3 points) 2. Which component(s) of the free energy change accompanying proton translocation will be affected when valinomycin is added to a suspension of mitochondria undergoing active respiration? Briefly explain your answer. (3 points) 3. Arrange the following redox active electron carriers in order of ascending redox potential, i.e., from the one with the lowest redox potential to the one with the highest redox potential. You may simply use the letter designation of each electron carrier to answer this question. There is no need to explain your answer. (3 points) (a) Cytochrome c 1 (Fe 3+ ) (b) Cytochrome a 3 (Fe 3+ ) (c) Cytochrome c (Fe 3+ ) (d) CoQ (e) NAD + 4. Circle the answer choices of the following electron carriers that are only capable of participating in...
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2009_Practice_Quiz_on_Ch_22 - BMB 402H Spring 2009 Practice...

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