Please help me answer question number 1. Question:1. Give the Haworth and chair forms for the a and B anomers of:a. D-galactose b. D-mannose c. D-talose2. a-sophorose, a disaccharide which is a product of the caramelization of glucose, has two glucoseunits linked by B-1,2 glycosidic linkage.a. give the structure of a-sophorose (chair)b. what is its systematic name?C.is it a reducing (or non-reducing) sugar?d. which of the following groups (hemiacetal, hemiketal, acetal, ketal) is present in a-sophorose?

Haworth projection is a cyclic representation of monosacharide sugars in the form of pyranoses and…

Answered: Question: 1. Give the Haworth and chair…

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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Draw the following sugars using Haworth projections:a. b-d-galactopyranose b. a-d-tagatopyranose c. a-l-glucopyranose
Referring to the structures in Figures 28.4 and 28.5, classify each pair of compounds as enantiomers, epimers, diastereomers but not epimers, or constitutional isomers of each other. a. D-allose and L-allose d. D-mannose and D-fructose b. D-altrose and D-gulose c. D-galactose and D-talose e. D-fructose and D-sorbose f. L-sorbose and L-tagatose
question 1 : draw an α,α(2, 2) linkage between the two monosaccharides(two fructose ). label the glycosidic linkage. Must be Haworth question 2 : Draw glycosidic linkage between D-glucose linked to D-altrose with a β(1, 3) glycosidic linkage. label clearly the glycosidic linkage. must be Haworth.
Bovine chymotrypsinogen has a molecular massof 25.6 kDa. Amino acid analysis shows that thisenzyme is 4.7% Gly (Mr 75.1).b. Calculate how many glycine residues are present in amolecule of bovine chymotrypsinogen
Ala-Phe-Pro-Cys-Clu-Arg-Arg-Pro-His-Gly-Lys-Clu Calculate the net charge on the polypeptide at a. pH 1.5 b. pH 8 c. pH 13
Match the substance to its description A. a branched homopolymer of a- D-Glucopyranose units Lactose B. A disaccharide commonly found in dairy/milk products |Cellulose c. a bacterial enzyme that hydrolyzes B(1,4) linkages Sucrose D. X- D-Glucopyranosyl (1,4) B-D-Glucopyranose Cellulase E. an enzyme that hydrolyzes a(1,4) linkages |Amylopectin F. Has a planar structure that is stabilized by hydrogen bonds an anomer of Maltose G. an epimer of D-Glucose H. a disaccharide containing glucose and fructose
Which of the following an anomer of a-D-galactopyranose? CHOH OH OH HO. CHOH HO. CH,OH HO. H. H. CH,OH HO. -ェ6- 6一ェHーさ

a. Identify the disaccharide in the photo. b. the glycosidic linkage in this disaccharide is what? α (1-2) linkage β (1-4) linkage α (1-4) linkage β (1-2) linkage c.Is the disaccharide below a non-reducing sugar?
Why is alpha (a) the predominant anomeric form of mannose? A. The alpha-anomer is more unstable because of the presence of more axial substituents B. The beta-anomer is more unstable because of the delta-2 effect of steric repulsions between the lone pairs of the equatorial OH at C1 and the axial OH at C2 C. The beta-anomer is more unstable because of the steric repulsions between the lone pairs of the equatorial OH at C1 and C2 D. Although the alpha-anomer has more axial OH, the instability factors created by one is cancelled by the other. E. The alpha-anomer creates a more open structure than the beta-anomer.
2. 3 With the help of the internet and your textbook, A. hand-draw the chemical structures of dipalmitoyl phosphatidyl choline, DPPC (also known as lecithin, although lecithin is a more general name and can refer to other chemical structures). B. Where is DPPC found in a cell? 4 C. Is this a lipid, carbohydrate, protein or nucleic acid? Do not leave any "R" groups in the structure that you draw. With the help of the internet and your textbook, hand-draw the chemical structures of the following: A. ibuprofen (What trademarked product is this used in?) B. amoxicillin (What type of agent is this?) C. diltiazem (What condition is this used to treat?) D. L-aspartyl-L-phenylalanine methyl ester (What is this chemical's trade name?) E. atorvastatin (What trademarked product is this used in?) Draw each of these structures by hand. Do not leave any "R" groups in the structure that you draw. Using the structures you drew in questions 2 & 3, for each of the organic functional groups listed below,…
2-79 The following is a block diagram for a sphingophosph lipid where the building blocks are labeled with letters and the linkages between building blocks are labeled with numbers. A 1 2 B 3 a. Which building blocks are fatty acid residues? b. Which building blocks are phosphate residues? c. Which linkages are amide linkages? d. Which linkages involve a sphingosine residue?
Trehalose, also known as mycose, is a disaccharide found in certain mushrooms. It is composed of two a-D-glucose linked in a aa(1à1) glycosidic bond. Using Haworth projection, draw the structure of trehalose. Indicate whether it is reducing or non-reducing.

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Question: 1. Give the Haworth and chair forms for the a and ß anomers of: D-galactose b. D-mannose c. D-talose a.