Homework Answers
During the reduction process the hydrogen ion is added to the molecule. In some reaction the hydrogen ion is added to the NAD+ ion and it becomes the NADPH or NADH. So the NADPH is the reduced molecules. Ths is the same with the FAD+ molecule which is reduce to the molecule FADH2 which is a reduced molecule.
The answer is E.
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Which is a reduced molecule? Multiple Choice NADP NADPH NAD FADH2 Both NADPH and FADH2 are...
Given the roles of NAD+ NADH in oxidation reactions and NADPH- NADP+ reduction reactions, discuss which...
Given the roles of NAD+ NADH in oxidation reactions and NADPH- NADP+ reduction reactions, discuss which cofactor is more commonly used in catabolic pathways and which one is in anabolic pathways? What do you expect the intracellular ratios of NAD+/NADH and NADP+/NADPH to be high or low under homeostasis? Explain your answers. Explain the benefits of the Q cycle comparing to direct transfer of electrons from QH2 to two cytochrome c Distinguish substrate-level phosphorylation and oxidative phosphorylation. Provide specific examples...
glutathione reductase catalyzes the following reaction: GSSG (oxidized glutathione) + NADPH+H ----> 2GSH (reduced Glutathione)+ NADP+....
glutathione reductase catalyzes the following reaction: GSSG (oxidized glutathione) + NADPH+H ----> 2GSH (reduced Glutathione)+ NADP+. NAD+ + H + 2e --> NADH E= -0.32 V NADP+ + H + 2e NADPH E= -0.32 V GSSG + + 2H + 2e 2GSH E= -0.23 V a) Calculate delta G for glutathione reductase reaction in the direction shown using E values above b) Suppose that a cell contained an isoform of glutathione reductase that used NADH instead of NADPH...
Question 12 Photosynthesis and Cellular Respiration produce a molecule called NADP+ and NAD+, respectively. What is...
Question 12 Photosynthesis and Cellular Respiration produce a molecule called NADP+ and NAD+, respectively. What is the purpose of NADP+ and NAD+? a)To collect free electrons and hydrogen ions. b)To drop off free electrons and hydrogen ions c)To make ATP d)To breakdown glucose into smaller and smaller components.
When a biological molecule is oxidized, the electrons are often captured by NAD, which is reduced...
When a biological molecule is oxidized, the electrons are often captured by NAD, which is reduced to NADH. With that knowledge, identify if the substrate other than NADH or NAD in each reaction is being oxidized or reduced Diphosphoglycerale + NADH Glyceraldehyde phosphate + NAD Reduced Oxidized Isocrate + NAD > alpha-ketoglutarale + CO NADH Pyruvate NADH-> Lactate NAD- Malate. NAD Oxaloacetate ADH
Redox pair Standard reduction potential NAD+/ NADH and NADP+/NADPH -0.32 V SO42-/S0 -0.22 V NO3-/NO2- +0.42...
Redox pair Standard reduction potential NAD+/ NADH and NADP+/NADPH -0.32 V SO42-/S0 -0.22 V NO3-/NO2- +0.42 V Fe3+/Fe2+ +0.77 V ½O2/H2O +0.80 V What is the expected energy yield (ΔE) for the transport of electrons from nitrite to iron in iron reducing bacteria? A. -0.32 V B. -0.35 V C. +0.35 V D. +0.77 V E. +1.19 V
De Novo lipogenesis ______ directly by the citrate shuttle, which increases the cytosolic levels of _______...
De Novo lipogenesis ______ directly by the citrate shuttle, which increases the cytosolic levels of _______ and _______. The citrate shuttle is "filled" by the anaplerotic carboxylation of pyruvate from the parallel oxidation of ______. Answer options: (1) acetyl-CoA (9) glucose (2) ADP (10) malonyl-CoA (3) AMP (11) NAD + (4) ATP (12) NADH (5) CO2 (13) NADP + (6) coenzyme A (14) NADPH (7) FADH2 (15) is inhibited / reduced (8) fatty acids (16) are stimulated / increased
22. Urea cycle takes place primarily in what cell types: A) Kidney cells B) Pancreatic cells...
22. Urea cycle takes place primarily in what cell types: A) Kidney cells B) Pancreatic cells c) Liver cells D) Mitochondrial cells 23. Which of the following proteins serve as proton pumps in the Electron Transport Chain (ETC): A) NADH dehydrogenase B) Cytochrome Coxidase C) Cytochrome C D) Succinate dehydrogenase E) Coenzyme Q-10 F) All of the above G) Both A) and B) are correct H) Both B) and C) are correct 1) Both A) and D) are correct 24....
Oxidation and Red uction Identification (basic) For each of the reactions depicted below -indicate which form is the ox...
Oxidation and Red uction Identification (basic) For each of the reactions depicted below -indicate which form is the oxidize mo lecule and which is the reduced. (6 points) 7-DEHYDROCHOLESTEROL НО H NADPH H NADP pyruvate COO lactate ҫоо но-с н + NAD* CHз C-0NADH+H CHз lactate dehydrogenase CHOLESTEROL но сОо- COO- Succinate Delydrogenase С—н Н—с—н E-FAD E-FADH2 + Н—С Н—с—н СОО- COO- Fumarate Succinate (trans- isomer)
Question 18 (1 point) Which conjugate redox pair is involved in biological oxidations? O both Fe2+...
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How many molecules of NAD are reduced as one molecule of pyruvate is metabolized through one...
How many molecules of NAD are reduced as one molecule of pyruvate is metabolized through one turn of the Krebs cycle?
Given the roles of NAD+ NADH in oxidation reactions and NADPH- NADP+ reduction reactions, discuss which cofactor is more commonly used in catabolic pathways and which one is in anabolic pathways? What do you expect the intracellular ratios of NAD+/NADH and NADP+/NADPH to be high or low under homeostasis? Explain your answers. Explain the benefits of the Q cycle comparing to direct transfer of electrons from QH2 to two cytochrome c Distinguish substrate-level phosphorylation and oxidative phosphorylation. Provide specific examples...
When a biological molecule is oxidized, the electrons are often captured by NAD, which is reduced to NADH. With that knowledge, identify if the substrate other than NADH or NAD in each reaction is being oxidized or reduced Diphosphoglycerale + NADH Glyceraldehyde phosphate + NAD Reduced Oxidized Isocrate + NAD > alpha-ketoglutarale + CO NADH Pyruvate NADH-> Lactate NAD- Malate. NAD Oxaloacetate ADH
22. Urea cycle takes place primarily in what cell types: A) Kidney cells B) Pancreatic cells c) Liver cells D) Mitochondrial cells 23. Which of the following proteins serve as proton pumps in the Electron Transport Chain (ETC): A) NADH dehydrogenase B) Cytochrome Coxidase C) Cytochrome C D) Succinate dehydrogenase E) Coenzyme Q-10 F) All of the above G) Both A) and B) are correct H) Both B) and C) are correct 1) Both A) and D) are correct 24....
Oxidation and Red uction Identification (basic) For each of the reactions depicted below -indicate which form is the oxidize mo lecule and which is the reduced. (6 points) 7-DEHYDROCHOLESTEROL НО H NADPH H NADP pyruvate COO lactate ҫоо но-с н + NAD* CHз C-0NADH+H CHз lactate dehydrogenase CHOLESTEROL но сОо- COO- Succinate Delydrogenase С—н Н—с—н E-FAD E-FADH2 + Н—С Н—с—н СОО- COO- Fumarate Succinate (trans- isomer)
Question 18 (1 point) Which conjugate redox pair is involved in biological oxidations? O both Fe2+ & Fe3+ and succinate & fumarate OFMN and FADH2 O NADP+ & NAD succinate & fumarate Fe2+ & Fe3+
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