i C-S-COA CH₂ H₂C-C-OH CH₂ Coo W A B CH₂-OH I CH₂ H3C-C-OH CH₂ coo- Y HS-COA A. The reaction is shared by ketone body synthesis and cholesterol biosynthesis B. The chemical in box B is NAD+ C. The reaction predominantly occurs in the liver D. All of the above E. None of the above
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which statement is true for the following reaction?
Step by step
Solved in 3 steps with 1 images
- 1) Tabulate the differences and/ or similarities of the different kinds of coenzymes and cofactors. Structure Source ATP SAM COA Retinal THF- tetrahydrofolate Vitamin K NAD, NADP FMN, FAD TPP PLP Adenosylcobalamin methylcobalamin and Function/ Role/ ImportanceNH, This compound is directly involved in: он O=P-0-CH, H но OmP-0- O oxidizing an alcohol in the conversion of sucrose to fructose. O the synthesis of malonyl coenzyme A. reducing a ketone in gluconeogenesis. reducing a C=C double bond in fatty-acid synthesis.What is X in the following biochemical pathway? RH NH₂+ A. R CH a-ketoglutarate CH3 coenzyme PLP coenzyme TPP aminotransferase decarboxylase D. glutamate R B. NH X R E. 0 R C. CH CO₂ I OH R. H H
- Which of the following statements is true for the shown reaction? The reaction requires vitamin B1 A decrease in the ratio of NADH/NAD+ inhibits the reaction The only fate of the product Y is to be converted to succinyl-CoA All of the above None of the aboveWhich of the following statements is TRUE about cholesterol biosynthesis? O NADH is needed to form mevalonate. O HMG-CoA lyase catalyzes the committed step. Six molecules of isopentyl pyrophosphate condense to form squalene. O Cholesterol is composed of 30 carbon atoms.Which of the following is NOT part of the multi-enzyme complex of fatty acid synthase? O enoyl-ACP reductase O acetyl CoA carboxylase O 3-hydroxybutyrylACP-dehydratese O B-ketoacyl-ACP reductase
- The following reaction is a vitamin B12-dependent reaction that proceeds via a mechanism analogous to that of the methylmalonyl-CoA mutase reaction. H Н4 H 1 H3N 2 H `H H HO b H H5 Identify which atoms in the product(s) correspond to the numbered atoms in the reactant. Atom a corresponds to atom Atom b corresponds to atom Atom c corresponds to atom****** Which of the following is incorrect about the drugs called statins? O a. None; all the other choices are correct Ob. They are competitive inhibitors of the regulatory enzyme of cholesterol synthesis Oc. They have a bulky group that mimics CoA Od. They have an HMG-like groupWhat is Xi RHI NH₂+ A. following biochemic pathway? CH a-ketoglutarate coenzyme PLP aminotransferase CH₂₁₂ glutamate D. B. NH X coenzyme TPP decarboxylase 0 E. CO₂ OH
- The following reaction, the last reaction in beta-oxidation, is an example of a: Enzyme Enzyme-H S-CoA S-COA H2C H3C CoA s–CoA C H2 CH2 R S-COA S-COA S-COA O A. Nucleophilic acyl substitution O B. Electrophilic addition OC. Nucleophilic addition D. Aldol condensation O E. HydrohalogenationDraw the Fischer projection of galactcose and show its catabolism until it releases carbon dioxide via complete oxidation. Use inter-related reactions or pathways, correct names and number of moles of intermediates involved, and the enzymes catalyzing the reactions. Account for all the 6 carbons of thr monosaccharide as they become carbon dioxide by encircling them all throughout the pathway you have writteFatty acids are oxidized by acyl COA dehydrogenase. Branched fatty acids, containing a methyl group at beta carbons cannot be oxidized by this enzyme. How does the oxidation of such branched fatty acids take place? Explain with all set of reactions and enzymes involved.. give necessary detail.. avoid cpy righting