Q: Threose is an aldose monosaccharide. The Fischer projection of D-threose is shown.
A: representation of molecules : Different types of projection formulae I)wedge&dash 2)Fischer 3)…
Q: Which of the aldohexoses are epimers of D-allose?
A: Aldo hexose refers to the sugar or specifically the monosaccharides with aldehyde group and 6 carbon…
Q: Another hexose gives the same aldaric acid on oxidation as does d-glucose. Which one?
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Q: Cellobiose, a disaccharide obtained by the hydrolysis of cellulose, is composed of two glucose units…
A: The joining of two monosaccharides through glycosidic linkage leads to the formation of sugar is…
Q: Draw the products formed when b-d-galactose reacts with ethanol and HCl. (Show all structures…
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Q: Without referring to the chapter, draw the chair conformations of(a) b-d-mannopyranose (the C2…
A: Chair confirmation is the most stable confirmation of cyclohexane. The chair confirmations of each…
Q: Draw two possible epimers of D-erythrose. Name each of these compounds using self drawn figure ?
A: Diastereomers containing many chiral centres with a difference in absolute configuration at only one…
Q: Ribulose is a ketopentose with the anomeric C on C-2. Will this monosaccharide reduce Benedict’s…
A: The mixture containing sodium citrate, pentahydrate of copper sulfate and sodium carbonate is…
Q: Draw the products formed when ß-D-galactose is treated with each reagent.a. Ag2O + CH3Ib. NaH +…
A: a.
Q: Draw the cyclic hemiacetal forms of d-mannose and d-galactose both as chair conformations and as…
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Q: Classify below pair of compounds as enantiomers, epimers, diastereomers but not epimers, or…
A: The structure of D-allose and L-allose is,
Q: What would be the product if D-allose is reacted with a.. 1.) NH2OH then 2.) (CH3CO)2O, NaOCOCH3…
A: D-allose reaction with the following reagents .
Q: Name the epimers of D-glucose.
A: The epimer of D-glucose is D-galactose since the configuration of D-galactose is only different at…
Q: Draw the products formed when β-D-galactose is treated with each reagent. a. Ag2O + CH3I b. NaH +…
A: The OH groups of monosaccharides on reaction with base and an alkyl halide convert into ether. A…
Q: Draw the Fischer, the Haworth, and the most stable chair conformation of β-D-mannose.
A: First draw the Fischer configuration of the D-mannose then convert to beta D-mannopyronose (some…
Q: Arrange the following sugars according to their DECREASING reactivity with Benedict’s reagent.…
A: The solution used to detect simple carbohydrates like glucose in Benedict's test is known as…
Q: Which of the following is TRUE about D-glucose? Select one: O a. It is capable of forming…
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Q: Arrange the following sugars according to their DECREASING reactivity with Benedict's reagent.…
A: A question based on introduction to organic chemistry that is to be accomplished.
Q: ) Draw d-allose, the C3 epimer of glucose
A: Epimers are the sugars that differ in the stereochemistry on a single carbon atom. The structure of…
Q: Given the following structure of aldose, (a) how many chiral carbons are there? (b) is it a reducing…
A: We will use this structure to answer the given questions.
Q: Draw one of epimers (in a Haworth projection) of the beta-D-glucose
A: Given: Beta -D-Glucose To find: Epimer of Beta - D-Glucose. Solution: Epimers are diastereomers .…
Q: Cellobiose, a disaccharide obtained by the hydrolysis of cellulose, is composed of two glucose units…
A: The β-1,4 glycoside bond is defined as when the OH bonds are present above the plane, and the…
Q: Draw the structure of ea a. an L-aldopentose b. a D-aldotetrose
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Q: Draw a chair conformation for the b-anomer of a disaccharide in which two units of d-glucopyranose…
A: A disaccharide is formed by the combination of 2 D- glucopyranose units.
Q: Monosaccharide A is a diastereomer of d-lyxose. Treatment of A with nitric acid forms an optically…
A: First, the D-lyxose is shown as below by using Fischer projection. For given compound the structure…
Q: Draw the structure of: a polysaccharide formed by joining D-mannose units in 1→4-β- glycosidic…
A: The larger carbohydrates are formed by forming bonds between repeating units. The bond formed…
Q: Carbohydrates in nature are only found in D-form L-form or both ?
A: D/L are naming is a system of naming in which the 2 molecules are differentiated based on the…
Q: Monosaccharide Structure and Stereochemistry For D-arabinose: Draw its enantiomer.
A: Given: A monosaccharide, D-arabinose.
Q: Sucrose is a dissacharide with the following structure: OH What type of glycosidic bond (a or ß) in…
A: Answer - Sucrose (common table sugar) is obtained commercially from cane or beet. It is a reducing…
Q: choose the b-anomer of the following monosaccharide
A: Given a question of glucose is a monosaccharide is a following b-anomer. - Anomer = compounds…
Q: Draw Haworth projections of both - and -anomers of D-fructose. Indicate which carbon is the…
A: Haworth projections are closed chain representations, that is as cyclic structure, used for sugar…
Q: Draw the following monosaccharides, using chair conformations for the pyranoses andHaworth…
A: Step 1 Given The given monosaccharide to be drawn is β-D-galactopyranose.
Q: Raffinose is a trisaccharide (C18H32O16) isolated from cottonseed meal. Raffinose doesnot reduce…
A: Raffinose is trisaccharide which composed of galactose, glucose, fructose (Cannon) and on hydrolysis…
Q: Draw a chair conformation for the a form of a disaccharide in which two units of d-glucopyranose are…
A: Carbohydrates are biomolecules which are composed of certain monomer units, called as…
Q: What would be the product if D-mannose is reacted with a.. 1.) NH2OH then 2.) (CH3CO)2O, NaOCOCH3…
A: D-mannose reaction are as follow.
Q: Please draw the Fischer, the Haworth, and the most stable chair conformation of β-D-mannose.…
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Q: -glucose can form cyclic structures that create the, and anomers. O a. D-glucose and L-glucose. O b.…
A: Glucose is C6H12O6 and is a monosaccharide which has 6 carbons and an aldehyde group. It can exist…
Q: Please draw the expanded structure of D-tagatose and its Fischer Projection (chiral C represented as…
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Q: Draw an epimer of D-fructose at C4. What is the name of this compound?
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Q: Þ-disaccharide composedof 2 galactose units an a - (1-76) -glycosidic bond? with
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Q: Please draw the expanded structure of D-altrose and its Fischer Projection (chiral C represented as…
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Q: Draw the Fischer of β-D-mannose. Please number the carbons.
A: Mannose is a monosaccharide that is a C-2 epimer (are the diastereomers containing various chiral…
Q: D-xylulose in cyclic structure
A: The compound given is D-xylose in a cyclic structure.
Q: Draw the following monosaccharides, using chair conformations for the pyranoses andHaworth…
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Q: Draw the products formed when β-D-galactose is treated with below reagent. Ag2O + CH3I
A: The biomolecules are organic compounds that are made up of carbon, hydrogen, and oxygen atoms.
Q: How many chiral centers are in B-d-glucopyranose and a-D-galactopyranose? How many stereoisomers of…
A: Beta -D-glucopyranose and alpha-D-glucopyranose are isomers. Chiral centers is carbon having four…
Q: Cellulose is not digestible by humans because it contains glucose units linked by -glycosidic bonds.…
A: Humans cannot digest cellulose because they lack the enzymes essential for breaking the beta-acetyl…
Q: Draw the structure of a disaccharide formed from two mannose units joined by a 1→4-α-glycosidic…
A: Structure of α-D-mannopyranose sugar is shown below,
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- A D-aldopentose A is reduced to an optically active alditol. Upon Kiliani–Fischer synthesis, A is converted to two Daldohexoses, B and C. B is oxidized to an optically inactive aldaric acid. C is oxidized to an optically active aldaric acid. What are the structures of A–C?A D-aldohexose A is formed from an aldopentose B by the Kiliani–Fischer synthesis. Reduction of A with NaBH4 forms an optically inactive alditol. Oxidation of B forms an optically active aldaric acid. What are the structures of A and B?How many chiral centers are in B-d-glucopyranose and a-D-galactopyranose? How many stereoisomers of these two aldohexoses can theoretically be drawn?
- Another hexose gives the same aldaric acid on oxidation as does d-glucose. Which one?The anticoagulant heparin is a polysaccharide that contains alternating residues of -D- glucuronic acid-6- sulfate and N-sulfo-D-glucosamine-6sulfate connected by (1 B 4)- glycosidic linkages. Draw a part of heparin that shows one each of the two residues.a). The Fischer projection of D-Galactose is given below. Draw Haworthprojections for the a and b anomers (both cyclic hemiacetals) of D-Galactose.