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Topic: FADH2

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	Water Quality Guidelines Online - Water: The Hub of Life - Key Features of Living Things - Electron Transport Chains
		NADH and FADH2 then transfer protons and electrons to the electron transport chain to produce additional ATPs from oxidative phosphorylation.
		During the process of aerobic respiration, coupled oxidation-reduction reactions and electron carriers are often part of an electron transport chain, a series of electron carriers that eventually transfers electrons from NADH and FADH2 to oxygen.
		The diffusible electron carriers NADH and FADH2 carry hydrogen atoms (protons and electrons) from substrates in exergonic catabolic pathways such as glycolysis and the citric acid cycle to other electron carriers that are embedded in membranes.
	www.ozh2o.com /h2life4.html (1451 words)

	* FADH2 - (Biology): Definition
		FADH2 is produced in the citric acid cycle.
		In oxidative phosphorylation, one molecule of FADH2 yields approximately 1.5 ATP
		NADH and FADH2, electron carrier molecules that were "loaded" during the citric acid cycle,...
	en.mimi.hu /biology/fadh2.html (182 words)

	TCA Cycle and Oxidative Phosphorylation
		a) The FAD and FADH2 are bound to Complex II in the inner mitochondrial membrane and are never free to the matrix.
		That FADH2 was never free to the matrix, it resides in the inner mitochondrial membrane as part of Complex II.
		-The e- from complex II are from FADH2 which was reduced during the Succinate dehydrogenase catylyzed reaction of the TCA cycle.
	umed.med.utah.edu /MS1/biochem/study/tca_oxphos.html (2934 words)

	Bioc 811
		This chain is a series of four protein complexes that transport the electrons to oxygen and at the same time pump protons to create a proton gradient across the mitochondrial inner membrane.
		We have started with the reduced coenzymes NADH and FADH2 and ended with ATP, yet the ATP was not made directly from the NADH or the FADH2.
		The electrons in NADH and FADH2 are at a very high negative reduction potential.
	drnelson.utmem.edu /etransport2002.html (4661 words)

	science.ca View question (Site not responding. Last check: )
		NADH is a two-electron donor, while FADH2 can donate its two electrons one at a time or it can donate both simultaneously.
		FADH2 can form a hydroperoxide adduct, which in turn can do chemistry very similar to peracids commonly used in the laboratory for peroxidation and ester formation from ketones.
		Finally, NADH is more reducing than FADH2, so often there is an electron-transfer chain, where two electrons from NADH (or its 3'-phosphorylated analog, NADPH) are used to reduce FAD to FADH2 and this, in turn, reduces a one-electron acceptor (such as Fe3+ in an iron-containing enzyme).
	www.science.ca /askascientist/viewquestion.php?qID=995 (347 words)

	NADH vs. FADH2
		I have a question regarding why FADH2 is less effective than NADH to produce energy.
		FADH2 transfers its electrons to cytochrome II (at a lower energy level than NADH).
		FADH2 is around because it has roles in other areas like synthesis, so by being a little more multifunctional than NADH it sacrifices some in the electron transport role.
	www.biology-online.org /biology-forum/about264.html (264 words)

	BioCarta - Charting Pathways of Life
		NADH and FADH2 transfer chemical energy from metabolic intermediates to the electron transport chain to create a different form of energy, a gradient of protons across the inner mitochondrial membrane.
		The energy of the proton gradient in turn drives synthesis of the high-energy phosphate bonds in ATP, the common energy currency of the cell used to drive a huge variety of reactions and processes.An acetyl-CoA molecule (2 carbons) enters the cycle when citrate synthase condenses it with oxaloacetate (4 carbons) to create citrate (6 carbons).
		If the oxygen supply to a muscle cell or a yeast cell is low, NAD+ and FADH levels fall, the Krebs cycle cannot proceed forward, and the cell must resort to fermentation to continue making ATP.Some Krebs cycle enzymes require non-protein cofactors for activity, such as thiamine, vitamin B1.
	www.biocarta.com /pathfiles/krebPathway.asp (466 words)

	* Privatpraxis Dr. Lutz Wilden - Low Level Lasertherapie - Tinnitus *
		Diese in ihren reduzierten Formen (NADH und FADH2) energiereichen Elektronenakzeptoren werden wieder regeneriert, wenn sie ihre Elektronen an die Atmungskette in der inneren Mitochondrienmembran weitergeben.
		Die Übertragung der Elektronen vom NADH oder FADH2 zum Sauerstoff geschieht in mehreren Stufen über diese Elektronentransporter, wobei zusätzlich durch Protonenpumpen in der mitochondrialen Matrix ein Membranpotential (Protonen-motorische Kraft) aufgebaut wird.
		Die treibende Kraft der oxidativen Phosphorylierung ist das durch den Elektronenfluß in der Atmungskette geschaffene Membranpotential der inneren Mitochondrienmembran und das Elektronenübertragungspotential des NADH oder FADH2.
	www.dr-wilden.de /publikationen/11.html (3948 words)

	Electronic Chain (Site not responding. Last check: )
		To this phase come all of the NADH's that have been created in the earlier phases of the process.
		In the 2nd phase, the FADH2 gives the H electrons to coenzime Q. 2 H+'s are released.
		The coenzime Q with the H's gives the H electrons to cytochrom B. An ATP is built.
	www.leyada.jlm.k12.il /proj/biology/electro.htm (424 words)

	Problem 16: ATP Production - ValueMD Medical Schools Forum
		After the citric acid cycle, the majority of energy is stored in the reduced electron carriers NADH and FADH2.
		Electrons from the carriers are donated to the electron transport chain in the mitochondrial inner membrane and are ultimately transferred to oxygen to produce water.
		FADH2, NADH, O2 After the citric acid cycle, the majority of energy is stored in the reduced electron carriers NADH and FADH2.
	www.valuemd.com /usmle-step-1-forum/18665-problem-16-atp-production.html (251 words)

	FADH2 - The Wordbook Encyclopedia (Site not responding. Last check: )
		Thewordbook is a comprehensive encyclopedia and a reference search engine, in which you have found this entry about FADH2.
		TheWordbook.com is your reference book and invites you to quarry.
		FADH2 (or 1,5-dihydro-FAD) is a derivative of FAD.
	www.thewordbook.com /FADH2 (289 words)

	Cellular Respiration Model B (Site not responding. Last check: )
		They must also understand that in the conversion of a six carbon fat, two ATP's are used to break down the molecule into three acetates which then feed into the Krebs cycle.
		In addition to the NADH and FADH2 produced by the Krebs cycle, 2 NADH and 2 FADH2 are produced.
		Since 3 Ac CoA groups are made from each 6 carbon lipid, 2 molecules of FADH2 sill be formed.
	mvhs1.mbhs.edu /mvhsproj/CellResp/cell_modelB.html (641 words)

	How the reducing agents (NADH and FADH2) able to generate the free-energy currency molecule (ATP)
		How the reducing agents (NADH and FADH2) able to generate the free-energy currency molecule (ATP)
		How are the reducing agents (NADH and FADH
		Materials and Information present may be reproduced for educational purposes only.
	www.chemistry.wustl.edu /~courses/genchem/Tutorials/Cytochrome/generation.htm (464 words)

	Chemiestudent.de - Chemie Forum :: Thema anzeigen - FADH2 und Redoxpotential (Pyruvat-Dehydrogenase) (Site not responding. Last check: )
		Das soll was mit dem Redoxpotential und den Cysteingruppen des Enzyms zu tun haben..aber was????
		hm ja FADH2 ist ja ein reduktionsmittel und NAD+ oxidationsmittel, das würde doch passen...
		aber die Cys müssen ja das Redoxpotential des FADH2 eröhen, damit es so leicht reoxidiert werden kann...
	www.chemiestudent.de /forum/viewtopic.php?p=13363&highlight= (246 words)

	Bio 3A Cellular Respiration
		--the NADH and FADH2 created in the Krebs cycle are used in the electron transport system to create large amounts of ATP
		Each FADH2 produces 2 ATP (remember 2 FADH2 were created in the Kreb's Cycle)
		Glycolysis occurs, and pyruvate is produced, the pyruvate enters the Krebs cycle and produces NADH2 and FADH2, and some ATP
	www.biologycorner.com /bio3/notes-respiration.html (640 words)

	NADH+H+ und FADH2 (Site not responding. Last check: )
		Warum bewirkt die Oxidation von FADH2 im Gegensatz zur Oxidation von NADH+H+ nicht die Bildung von 3 sondern nur von 2 ATP-Molekülen??
		Nov 2004 15:12 Titel: Re: NADH+H+ und FADH2
		FADH2 gibt die 2 Elektronen an Flavoproeine und nicht an NADH+H+-Dehydrogenase, so haben wir einen Schritt weniger also weniger Protonen werden nach außen gepompt und so statt 3 ATP nur 2 ATP werden gebildest.
	www.bioboard.de /lhtopic,150,0,0,asc,.html (223 words)

	Subject: ORGLIST: FADH2 production and FAD assay (Site not responding. Last check: )
		I am wanting to generate in situ FADH2 (the reduced form of flavin adenine
		I need a system that is quite clean as I want to
		of the FADH2 and do not wish for too many complicating species.
	www.dq.fct.unl.pt /orglist/archive/orgl2000/00000829.htm (176 words)

	DBGET Result: LIGAND 2.1.1.74 (Site not responding. Last check: )
		54 + FADH2 = tetrahydrofolate + tRNA containing ribothymidine at
		Up to 25% of the bases in mature tRNA are post-translationally
		5,10-methylenetetrahydrofolate and FADH2 to supply the atoms for
	www.genome.ad.jp /dbget-bin/www_bget?ligand+2.1.1.74 (75 words)

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