A recently discovered bacterium carries out ATP synthesis coupled to the flow of electrons through a chain of carriers to some electron acceptor. The components of its electron transfer chain differ from those found in mitochondria: they are listed below with their standard reduction potentials. Electron carriers in the newly discovered bacterium:Oxidant ReductantElectrons transferredE’ °(V)NAD+NADH2-0.32Flavoprotein b (oxidized)Flavoprotein b (reduced)2-0.62cytochrome c (Fe3+)cytochrome c (Fe2+)1+0.22Fe-S protein (oxidized)Fe-S protein (reduced)2+.89flavoprotein a (oxidized)flavoprotein a (reduced)2+0.77 Place the electron carriers in the order in which they are most likely to act in carrying electronsIs it likely that O2 (for which E’ °=0.82 V) is the final electron acceptor in this organism? Why or why not?How would you calculate the maximum number of ATP molecules that could theoretically be synthesized, under standard conditions, per pair of electrons transferred through this chain of carriers?(The Faraday constant is 96.48 kJ/Vmol; R=8.314 J/mol K: Δ G’°for ATP synthesis is +30.5 kJ/mol

a) In an electron transport chain, the electron moves from electron carriers having a low value of…

Answered: A recently discovered bacterium carries…

Human Anatomy & Physiology (11th Edition)

11th Edition

ISBN:9780134580999

Author:Elaine N. Marieb, Katja N. Hoehn

Publisher:Elaine N. Marieb, Katja N. Hoehn

Chapter1: The Human Body: An Orientation

Section: Chapter Questions

Problem 1RQ: The correct sequence of levels forming the structural hierarchy is A. (a) organ, organ system,...

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A recently discovered bacterium carries out ATP synthesis coupled to the flow of electrons through a chain of carriers to some electron acceptor. The components of its electron transfer chain differ from those found in mitochondria: they are listed below with their standard reduction potentials.

Electron carriers in the newly discovered bacterium:

Oxidant	Reductant	Electrons transferred	E’ °(V)
NAD+	NADH	2	-0.32
Flavoprotein b (oxidized)	Flavoprotein b (reduced)	2	-0.62
cytochrome c (Fe3+)	cytochrome c (Fe2+)	1	+0.22
Fe-S protein (oxidized)	Fe-S protein (reduced)	2	+.89
flavoprotein a (oxidized)	flavoprotein a (reduced)	2	+0.77

Place the electron carriers in the order in which they are most likely to act in carrying electrons
Is it likely that O2 (for which E’ °=0.82 V) is the final electron acceptor in this organism? Why or why not?
How would you calculate the maximum number of ATP molecules that could theoretically be synthesized, under standard conditions, per pair of electrons transferred through this chain of carriers?

(The Faraday constant is 96.48 kJ/Vmol; R=8.314 J/mol K: Δ G’°for ATP synthesis is +30.5 kJ/mol

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