The reactions occurring as electrons move through the electron transport chain are also Redox reactions. Using your Redox tower, calculate the redox potential of the full reaction as the cytochrome a interacts with 02: Cytochrome a red + O2 + 4H* -> Cytochrome a ox + H20
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- In what form is energy transferred in a redox reaction?Which of the following best describes the action of cytochrome c oxidase? a. Cytochrome c oxidase combines water and oxygen to produce hydrogen peroxide. b. Cytochrome c oxidase transports electrons out of the respiratory reaction. c. Cytochrome c oxidase enables oxygen to accept electrons at the end of the electron transport respiratory chain. d. Cytochrome c oxidase converts hydrogen peroxide into water and oxygen. e. Cytochrome c oxidase reduces thiosulfate anion to hydrogen sulfide.Define the following terms: a. electron transport chain b. oxidation-reduction reactions c. conjugate redox pair d. reduction potential e. standard reduction potential
- Which of the following statements about oxidation-reduction (redox) reactions is correct? A) The molecule that is oxidized loses electrons and is the oxidizing agent. B) The molecule that is reduced gains electrons and is the oxidizing agent. C) The molecule that is oxidized gains electrons and is the reducing agent.Place the following components of the electron-transport chain in their proper order: (a) cytochrome c (b) Q-cytochrome coxidoreductase (c) NADH-Q reductase (d) cytochrome c oxidase (e) ubiquinoneShown below are reduction potentials for four half-reactions. Which of the coupled reactions is favorable? (Note that for Cytochrome c you must multiply the reduction potential by 2 for each coupled reaction because only one electron is involved) a) 2 Cytochrome c (Fe3+) + H2O ó 2 Cytochrome c (Fe2+) + O2 b) NADH + Succinate- ó NAD+ + Fumarate- c) Fumarate- + H2O ó Succinate- + O2 d) All of the above
- Which of these molecules associated with electron transport is in the reduced state? Choose from the following: (A) cytochrome a3+++ (b) cytochrome a3++Ozone in the lower atmosphere is a pollutant that can form by the following reaction involving the oxidation of unburned hydrocarbons:CH4(g) + 8 O2(g)-------->CO2(g) + 2 H2O(g) + 4 O3(g)Use the standard free energies of formation to determine ΔG°rxn for this reaction at 25 °C.What compound receives elections from NADH? a. FMN b. ubiquinone c. cytochrome c₁ d. oxygen
- Which of the following coenzymes accepts electrons that was removed in the succinate of the Krebs Cycle? A. ADP B. FAD C. GDP D. NAD+What do the following abbreviations stand for?(a) FAD(b) CoQ(c) NADH/H+(d) Cytochrome cWhich steps in the Krebs Cycle do the following processes occur? a. Reaction utilizes FADb. Reaction generates NADHc. CO2 is removedd. Reaction forms a new C-C single bonde. Reaction breaks a C-C bond
