EBK ESSENTIAL ORGANIC CHEMISTRY
3rd Edition
ISBN: 9780100659469
Author: Bruice
Publisher: YUZU
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Textbook Question
Chapter 18.12, Problem 27P
What groups are interchanged in the following enzyme-catalyzed reaction that requires coenzyme B12?
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Chapter 18 Solutions
EBK ESSENTIAL ORGANIC CHEMISTRY
Ch. 18.1 - Prob. 1PCh. 18.2 - If H218O were used to hydrolyze lysozyme, which...Ch. 18.3 - Which of the following amino acid side chains can...Ch. 18.3 - Arginine and lysine side chains fit into trypsins...Ch. 18.4 - Which of the following amino acid side chains can...Ch. 18.4 - Prob. 6PCh. 18.5 - Prob. 7PCh. 18.5 - Draw the mechanism for the hydroxide-ion-catalyzed...Ch. 18.5 - What advantage does the enzyme gain by forming an...Ch. 18.7 - Prob. 10P
Ch. 18.7 - Prob. 11PCh. 18.8 - How many conjugated double bonds are there in a....Ch. 18.8 - Instead of adding to the 4a-position and...Ch. 18.8 - In succinate dehydrogenase, FAD is covalently...Ch. 18.8 - Prob. 15PCh. 18.9 - Acetolactate synthase is another TPP-requiring...Ch. 18.9 - Acetolactate synthase can also transfer the acyl...Ch. 18.9 - Prob. 18PCh. 18.9 - Prob. 19PCh. 18.10 - Prob. 21PCh. 18.11 - Prob. 23PCh. 18.11 - Which compound is more easily decarboxylated?Ch. 18.11 - Explain why the ability of PLP to catalyze an...Ch. 18.11 - Explain why the ability of PLP to catalyze an...Ch. 18.12 - What groups are interchanged in the following...Ch. 18.13 - Why is the coenzyme called tetrahydrofolate?Ch. 18.13 - What amino acid is formed by the following...Ch. 18.13 - How do the structures of tetrahydrofolate and...Ch. 18.13 - What is the source of the methyl group in...Ch. 18 - Prob. 32PCh. 18 - Prob. 33PCh. 18 - From what vitamins are the following coenzymes...Ch. 18 - Prob. 35PCh. 18 - For each of the following reaction, name both the...Ch. 18 - Explain why serine proteases do not catalyze...Ch. 18 - Prob. 38PCh. 18 - For each of the following enzyme catalyzed...Ch. 18 - Trisephosphate isomerase (TIM) catalyzes the...Ch. 18 - Prob. 41PCh. 18 - What acyl groups have we seen transferred by...Ch. 18 - When UMP is dissolved in T2O, exchange of T for H...Ch. 18 - Prob. 44PCh. 18 - When transaminated, the three branched-chain amino...Ch. 18 - Aldolase shows no activity if it is incubated with...
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- What is the transition state in an enzyme- catalyzed reaction.arrow_forwardThe hydrolysis of pyrophosphate to orthophosphate drives biosynthetic reactions such as DNA synthesis. In Escherichia coli, a pyrophosphatase catalyzes this hydrolytic reaction. The pyrophosphatase has a mass of 120 kDa and consists of six identical subunits. A unit of activity for this enzyme, U, is the amount of enzyme that hydrolyzes 10 umol of pyrophosphate in 15 minutes. The purified enzyme has a Vnax of 2800 U per milligram of enzyme. When (S] >> KM, how many micromoles of substrate can 1 mg of enzyme hydrolyze per second? Vnax = umol -s. mg- If cach enzyme subunit has one active site, how many micromoles of active sites, or (E]r, are there in 1 mg of enzyme? (Er = umol - mg-arrow_forwardPlease solve it asaparrow_forward
- Identify the class and sub-class of the enzyme on the given enzyme-catalyzed reactionarrow_forwardConsider the following reaction: H-C-O-P-O CH2 0- OH C-O-P-0- Leaving Group CH2 0- • What is the leaving group? • What is the enzyme classification for the enzyme that catalyzes this reaction? ptsarrow_forwardMatch each enzyme class to the type of reactions catalyzed. Enzyme Class [11][ Type of Reactions Catalyzed reactions involving the transfer of a functional group from one molecule to another energetically unfavorable reactions that require ATP to form new bonds oxidation-reduction reactions reactions that eliminate or form a double bond hydrolysis reactions isomerization reactions hydrolase Answer Bank transferase ligase lyase isomerase oxidoreductasearrow_forward
- What are the products for the chemical reaction of C2H5OH+O2—->arrow_forwardWhich of the following general molecules will react with Br2 so that the major substrate product structure contains TWO Br atoms after ONE reaction step? O An alkene molecule (in the presence of a relatively nonpolar solvent such as CCI4 or CH2CI2) An alkane molecule, when an iron-based catalyst (such as FeBr3 or FeC13) is present An aromatic (benzene-containing) molecule, when an iron-based catalyst (such as FeBr3 or FeC13) is present 3 of these 4 responses are correct An aromatic (benzene-containing) molecule (in the presence of a relatively nonpolar solvent such as CCI4 or CH2CI2)arrow_forwardOxaloacetate is an inhibitor of succinate dehydrogenase because it is structurally very similar to succinate as shown below. Also, its binding to the enzyme does not involve any covalent bond formation. What type of inhibitor is oxaloacetate? COO | CH₂ 1 CH₂ 1 COO Succinate COO | CH₂ C=O COO Oxaloacetate O a noncompetitive inhibitor both a noncompetitive and an irreversible inhibitor O an irreversible inhibitor O a competitive inhibitorarrow_forward
- In the KEGG database, the pathway map for glycolysis and gluconeogenesis (search for "glycolysis gluconeogenesis") indicates that __unique enzyme/s can catalyze the conversion of a-D-glucose to a-D-glucose-6- phosphate (a-D-glucose-6P). 03 02 04 01arrow_forward1. What enzyme class do each of the following reactions belong to. Do not give specific enzyme names, just the classification. H NH3-C HO CH3 O H O NH–C -C NH₂ H + H₂O OH „[ls.u]ls C- NH3- H ? HO Agardagin NH3-C CH3 OH + NH3 H Harrow_forwardDescribe the difference between graphs showing temperature versus reaction rate for an enzyme-catalyzed reaction and an uncatalyzed reaction.arrow_forward
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