Draw the asked structures. Draw the structure of the disaccharide isomaltose, given the following information:i. It is composed of 2 D-glucose units.ii. The glycosidic bond is a(1>6)iii. The anomeric carbon not involved in the glycosidic bond is in the B configuration.Deduce the structure of a disaccharide from the following information:i. Complete hydrolysis yield only D-glucose. It is hydrolyzed by only a-glucosidase, but not B-glucosidase.i. It does not reduce Cu2* to Cu2O.

Structure of disachharide is given below.

Answered: Draw the structure of the disaccharide…

Introductory Chemistry: A Foundation

9th Edition

ISBN:9781337399425

Author:Steven S. Zumdahl, Donald J. DeCoste

Publisher:Steven S. Zumdahl, Donald J. DeCoste

Chapter21: Biochemistry

Section: Chapter Questions

Problem 35QAP

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4. What is the polysaccharide that contains glucose units with a(1- 4) glycosidic bonds and branches a(16) glycosidic bonds every 12 units? 5. What is the polysaccharide that contains glucose units with only a(1→4) glycosidic bonds?
a. Identify the glycosidic linkage in disaccharide C, classify the glycosidic bond as α or β, and use numbers to designate its location.b. Identify the lettered compounds in the following reaction.
connected by an a, B-1,2-glycosidic bond. Explain why sucrose is both a and B at the same time. 4. Sucrose (table sugar) contains the monosaccharide glucose and the monosaccharide fructose CH2OH H. H H OH OH H ОН О HOH2C НО CH2OH OH H sucrose
1. What is the polysaccharide that contains glucose units with a(1 4) glycosidic bonds and branches a(1–6) glycosidic bonds every 25 units? 2. What is the polysaccharide that contains glucose units with only B(1→4) glycosidic bonds? 3. What is the polysaccharide that contains N-acetylglucosamine with B(1-4) glycosidic bonds? 4. What is the polysaccharide that contains glucose units with a(1-→ 4) glycosidic bonds and branches a(1+6) glycosidic bonds every 12 units? 5. What is the polysaccharide that contains glucose units with only a(1→4) glycosidic bonds?
9 A disaccharide consists of the molecules of D-glucose and D-glucosamine joined by a (1a, 1b)-glucosidic bond. a) Draw the structure of the disaccharide (Haworth projection) if you know that in D- glucose the anomeric carbon has an a-configuration. b) Give the name of the union you drew in question a. c) Draw the structure of the product (cantilever conformation) resulting from the effect of excess acetic anhydride and pyridine on the disaccharide. Hint: D-glucosamine has the same structure as D-glucose, but C-2 has an amino group instead of a hydroxyl.
5. The Haworth projection of a simple sugar is given below. Note that the-OH group on the anomeric carbon can be either up or down. Using only this sugar, draw the Haworth projections of the following: a) an a-disaccharide with a B (1 3) glycosidic bond b) an a-disaccharide with an a (1→ 3) glycosidic bond c) a B-disaccharide with an a (1→4) glycosidic bond d) a B-disaccharide with an B (1 4) glycosidic bond CH2OH HO H H OH group can be either up or down OH H. OH H
The oligosaccharide shown below is the repeating disaccharide found in dermatan sulfate, a biological glycosaminoglycan found throughout the body. a) Is ring A a D- or an L-sugar? How do you know based on the Haworth structure of ring A below? b) Is the ring Ba glucose derivative? How do you know based on the Haworth structure of ring B below? c) Describe the linkage between the monosaccharide moleties ring A to ring B. (See slides 9-10 of the Fischer Haworth PowerPoint presentation) 0,so CH,OH O OR coo NHCOCH, OH óso,
9) When D-glucose cylclizes to its alpha pyranose form, how many axial hydrogens does it have? a) 3 b) 4 c) 5 d) 6 10) Which blood group has the fewest linked monosaccharides in its antigenic determinant? a) O b) AB c) B d) A
HO 15. (a) Identify the glycosidic bond in the following disaccharide. (b) Decide whether the compound is a non-reducing or reducing sugar. (c) Polysaccharide units are usually bonded together with a or 3 1, 6 or 1, 4 linkages. What linkage is used in the disaccharide shown below? (pis) но- HO HO H HO H HO CHO O 16. Draw the structure for 1,4-ß-D-galactopyranosyl-D-glucose. -OH -OH H но- 17. Assign an R/S designation to each chirality center in the following compound: ( CH₂OH HO O -OH
draw the structure ofa disaccharide made up of D-glucose units.the glycosidic bond is a-1,6-glycosidic bond
Draw a monosaccharide described in the following statements: 1. A diastereomer of D-fructose in the D- configuration. 2. A C-3 epimer of D- glucose. 3. A C-3 epimer of D- fructose.
2 Draw the structure of a disaccharide made up of two D-glucose units. The glycosidic bond is α-1,6-glycosidic bond.

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