Study Guide And Student Solutions Manual For Organic Chemistry, Books A La Carte Edition (7th Edition)
7th Edition
ISBN: 9780321934833
Author: Paula Yurkanis Bruice
Publisher: PEARSON
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Textbook Question
Chapter 23.12, Problem 26P
Draw the mechanism for the hydroxide ion-catalyzed cleavage of fructose-l.6-bisphosphate.
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Chapter 23 Solutions
Study Guide And Student Solutions Manual For Organic Chemistry, Books A La Carte Edition (7th Edition)
Ch. 23.2 - Compare each of the mechanisms listed here with...Ch. 23.2 - Prob. 3PCh. 23.2 - Prob. 4PCh. 23.3 - a. Draw the mechanism for the following reaction...Ch. 23.5 - Prob. 7PCh. 23.5 - Propose a mechanism for the Co2+ catalyzed...Ch. 23.6 - Prob. 9PCh. 23.7 - Prob. 10PCh. 23.7 - Prob. 12PCh. 23.7 - Prob. 13P
Ch. 23.9 - Which of the following amino acid side chains can...Ch. 23.9 - Which of the following C-terminal peptide bonds is...Ch. 23.9 - Carboxypeptidase A has esterase activity as well...Ch. 23.9 - Arginine and lysine side chains fit into trypsins...Ch. 23.9 - Explain why serine proteases do not catalyze...Ch. 23.10 - If H2 18O is used in the hydrolysis reaction...Ch. 23.10 - When apples that have been cut are exposed to...Ch. 23.11 - Prob. 22PCh. 23.11 - The pHactivity profile for glucose-6-phosphate...Ch. 23.11 - Draw the pH-activity profile for an enzyme that...Ch. 23.12 - Prob. 25PCh. 23.12 - Draw the mechanism for the hydroxide ion-catalyzed...Ch. 23.12 - What advantage does the enzyme gain by forming an...Ch. 23.12 - Prob. 28PCh. 23.12 - Aldolase shows no activity if it is incubated with...Ch. 23 - Which of the following parameters would be...Ch. 23 - Prob. 30PCh. 23 - Prob. 31PCh. 23 - Prob. 32PCh. 23 - Indicate the type of catalysis that is occurring...Ch. 23 - The deuterium kinetic isotope effect (KH2O/KD2O)...Ch. 23 - Prob. 35PCh. 23 - Co2+ catalyzes the hydrolysis of the lactam shown...Ch. 23 - there are two kinds of aldolases. Class I...Ch. 23 - Prob. 38PCh. 23 - The hydrolysis of the ester shown here is...Ch. 23 - Prob. 40PCh. 23 - At pH = 12, the rate of hydrolysis of ester A is...Ch. 23 - 2-Acetoxycyclohexyl tosylate reacts with acetate...Ch. 23 - Proof that an imine was formed between aldolase...Ch. 23 - Prob. 44PCh. 23 - a. Explain why the alkyl halide shown here reacts...Ch. 23 - Triosephosphate isomerase (TIM) catalyzes the...
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- One of the steps in the pentose phosphate pathway for glucose catabolism is the reaction of xylulose 5-phosphate with ribose 5-phosphate in the presence of a transketolase to give glyceraldehyde 3-phosphate and sedoheptulose 7-phosphate. (a) The first part of the reaction is nucleophilic addition of thiamin diphosphate (TPP) ylide to xylulose 5-phosphate, followed by a retro-aldol cleavage to give glyceraldehyde 3-phosphate and a TPPcontaining enamine. Show the structure of the enamine and the mechanism by which it is formed. (b) The second part of the reaction is addition of the enamine to ribose 5-phosphate followed by loss of TPP ylide to give sedoheptulose 7-phosphate. Show the mechanism.arrow_forwardIn the pentose phosphate pathway for degrading sugars, ribulose 5-phosphate is converted to ribose 5-phosphate. Propose a mechanism for the isomerization.arrow_forwardWrite the mechanism for the base-catalyzed conversion of d-fructose to d-glucose and d-mannose.arrow_forward
- Propose a mechanism for the TPP-dependent step in isoleucine biosynthesis. Draw the predicted product of this reaction.arrow_forwardDraw the mechanism for the interconversion of α-D-glucose and β-d-glucose in dilute HCl.arrow_forwardCarboxypeptidase requires a Zn²+ cofactor for the hydrolysis of the peptide bond of a C-terminal aromatic amino acid. T/F?arrow_forward
- Aldolase shows no activity if it is incubated with iodoacetic acid before fructose-1,6-bisphosphate is added to the reaction mixture. What causes this loss of activity?arrow_forwardD-Glicose reacts with acetone in the presence of acid to yield the nonreducing 1, 2: 5, 6-diisopropylidene-D-glucofuranose. Propose a mechanism.arrow_forwardDefine the work of carbonic anhydrase ?arrow_forward
- Identify the sugar in description. An aldopentose that is not d-arabinose forms d-arabinitol when it is reduced with NaBH4.arrow_forwardThe C2-epimer of D-xylose is called (blank 1). The enediol rearrangementconverts an aldose into a (blank 2). The aldopentose embedded in RNA is(blank 3). An aldopentose would have (blank 4) possible stereoisomers,of whichBlankwould be D-sugars. An ketopentose would have (blank 4) possiblestereoisomers, of which (blank 5) would be D-sugarsarrow_forwardShow the steps in converting Fischer to Haworth to: Convert D-Talose to its aIpha pyranose structure. Convert D-Tagatose to its beta furanose structure.arrow_forward
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