Section 5

Bioenergetics 1

Feb 19 Reading 1:Cytochrome C Oxidase

Query 13   Why would an O2 channel be located within the membrane?

Query 14   Given the similarity in electronic structure of azide and oxygen is there a criticism of the histidine shuttle mechanism?

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Feb 21 Reading 2: bc1 complex

Query 15   Explain the Q-loop and describe how such a redox loop can create a proton gradient?

Query 16   What is the role of the domain movement in the Q-loop cycle?.