The ultimate electron acceptor in the electron transport chain is a. NAD^+ b. FA
ID: 78782 • Letter: T
Question
The ultimate electron acceptor in the electron transport chain is a. NAD^+ b. FAD c. oxygen. d. ADP. To calculate the AO of a redox reaction, you need: a. the reduction potential (E degree) of the half reactions b. the Faraday constant c. the number of electrons involved in the transfer d. none of these e. all of these Complex I of the electron transport chain oxidizes._____, reduces _____, and _____ protons in the process. a. FADH2; coenzyme Q; doesn't pump b. FADH2; coenzyme Q; pumps c. NADH; coenzyme Q; doesn't pump d. NADH; coenzyme 0; pumps Chemiosmotic coupling involves this process: a. Using an electron gradient to synthesize ATP. b. Using a proton gradient to synthesize ATP. c. Using oxygen flow to synthesize ATP. d. Using a proton gradient to make water from oxygen. e. These are all chemiosmotic processes. Complex III of the electron transport chain oxidizes _____, reduces _____, and _____ protons in the process. a. coenzyme Q; cytochrome c; pumps b. coenzyme Q; cytochrome c; doesn't pump c. cytochrome c; coenzyme Q; pumps d. cytochrome c; coenzyme Q; doesn't pump Which of the following is not a part of the electron transport chain? a. NADH b. FADH2 c. coenzyme Q d. coenzyme A Electron flow in the mitochondria follows this pathway: a. NADH rightarrow FMN rightarrow Coenzyme Q rightarrow Cyt A rightarrow Cyt B rightarrow Cyt C rightarrow 02 b. NADH rightarrow FMN Cyt B rightarrow Coenzyme Q rightarrow Cyt C rightarrow Cyt A rightarrow 02 c. FMNH2 rightarrow NAD rightarrow Coenzyme Q rightarrow Cyt B rightarrow Cyt C rightarrow Cyt A rightarrow 02 d. NADH rightarrow FMN rightarrow Coenzyme Q rightarrow Cyt B rightarrow Cyt C rightarrow Cyt A rightarrow 02 e. NADH rightarrow FMN rightarrow Cyt B rightarrow Cyt C rightarrow Coenzyme Q rightarrow Cyt A rightarrow 02Explanation / Answer
1) c Oxygen. Oxygen is the final acceptor if electrons in the ETC. This reaction results in the formation of water
2)e
The formula for Delta G is DG°= – nF(DE°)
Where
DG°=Gibbs free energy change of a system (in Joules)
DE°=s the change in reduction potential of the redox reaction (in Volts)
n= the number of electrons transferred in the reaction (in moles)
F= Faraday’s constant (96,500 Joules/Volt/mol)
3) D
two electrons from NADH are removed and transferred toubiquinone (Q) in complex 1 . The reduced product, ubiquinol (QH2),diffuses within the membrane, four protons (H+) are pumped across the membrane and a proton gradient is produced as a result.
4 b
The definition of chemiosmotic coupling is the synthesis of ATP using the energy from a proton gradient. This proton gradient is generated in the ETC.
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DG°=Gibbs free energy change of a system (in Joules)
DE°=s the change in reduction potential of the redox reaction (in Volts)
n= the number of electrons transferred in the reaction (in moles)
F= Faraday’s constant (96,500 Joules/Volt/mol)
3) D
two electrons from NADH are removed and transferred toubiquinone (Q) in complex 1 . The reduced product, ubiquinol (QH2),diffuses within the membrane, four protons (H+) are pumped across the membrane and a proton gradient is produced as a result.
4 b
The definition of chemiosmotic coupling is the synthesis of ATP using the energy from a proton gradient. This proton gradient is generated in the ETC.
Please do rate my answer
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