Which of the following is higher during high levels of glutathione reductase and NADP?SHAно(GSH)OHNH2NH2HOOH;-CH-CH2-CH2-C-NH-CH–ċ–NH–CH2-CH2В(GSSG)CH2-CH-CH;-CH2=C-NH–CNH-CH–Ç-NH-CH2-CHOOHNH2

Glutathione reductase: Glutathione reductase is the main enzyme responsible for the conversion of…

Answered: Which of the following is higher during…

Biochemistry

9th Edition

ISBN:9781319114671

Author:Lubert Stryer, Jeremy M. Berg, John L. Tymoczko, Gregory J. Gatto Jr.

Publisher:Lubert Stryer, Jeremy M. Berg, John L. Tymoczko, Gregory J. Gatto Jr.

Chapter1: Biochemistry: An Evolving Science

Section: Chapter Questions

Problem 1P

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Of the allosteric enzymes listed below, which are suppressed by NADH? Select all that apply. the pyruvate dehydrogenase complex a-ketoglutarate dehydrogenase complex U isocitrate dehydrogenase pyruvate kinase Ophosphofructokinase hexokinase Oglucokinase
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which of the following is not true for a muscle that is forced to metabolize glucose anaerobically ? - The cells breakdown glucose faster - The cells produce less ATP per mole of glucose - The cells metabolize glucose to lactate - The activity of the cytosolic gycerol-3-phosphate dehydrogenase will be required for the muscle to sustain glycolysis - The muscle quickly experiences fatigue if it is deficient in the enzyme lactate dehydrogenase
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Citrate synthase is inhibited by: NAD+ ADP NADH oxleoacetate All of the above None of the above
(d) || CH3-C- =2 CH3-C O= + CO₂ 2 Pyruvate Acetate The conversion of pyruvate to acetate represents Consequently, the complete balanced reaction is a reduction. no change in oxidation state. an oxidation.
The glutamate dehydrogenase (GDH) catalyses the following reaction: *H3N- C H - CH₂ - CH₂ COO™ acide glutamique -COO + NAD+ + H₂O Time (min) A340 GDH COO™ с 5 1 2 3 4 1.760 1.718 1.675 1.635 1.595 CH₂ The answer: -1 - Vo 1.1.107 M.s-¹ - EA in 0.1 mL of GDH = 0.33 nkat CH₂ The activity of GDH is monitored in the sense of the formation of glutamate using the following conditions: 0.2 mL of 5 M ammonium sulphate 2.4 mL of buffer at pH 8 0.1 mL of NADH at 6.15 mg.mL-¹ (M = 709 g.mol-¹) 0.2 mL of 1 M a-ketoglutarate solution Warm mixture at 25 °C for 5 min Add 0.1 mL of GDH solution containing 1.6 mg.mL protein to start the reaction. COO CO acide a-cétoglutarique The change in absorbance at 340 nm is monitored, in a 1-cm cuvette, every minute for 10 min. Results are given in the table below: Data ENADH at 340 nm = 6220 M¹.cm¹ -1 + NH4+ NADH + H+ 6 1.550 7 8 10 9 1.510 1.489 1.476 1.451 Calculate the initial rate Vo of the reaction in M.s¹. - Calculate the enzyme activity of the volume of…
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The glycolytic enzyme pyruvate kinase catalyzes the conversion of: 1,3-bisphosphoglycerate into 3-phosphoglycerate (producing ATP) glyceraldehyde-3-phosphate into 1,3-bisphosphoglycerate (producing NADH) phosphoenolpyruvate into pyruvate (producing ATP) fructose-6-phosphate into fructose-1,6-bisphosphate (consuming ATP) glucose into glucose-6-phosphate (consuming ATP)

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Which of the following is higher during high levels of glutathione reductase and NADP? SH A HO (GSH) но NH2 NH2 HO OH C-CH-CH2-CH2-C-NH-CH-–ċ–NH-CH2-C CH2 B (GSSG) CH2 C-CH-CH2-CH2-Ć-NH-CH–Ç-NH-CH;-Ć HO DH NH2