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Concept explainers
(a)
Interpretation: The members of the given pair of monosaccharides whether possess the same molecular formula or not has to be predicted.
Concept introduction: The simplest hydrolyzed form that is obtained from the carbohydrates is known as monosaccharide. The general formula for monosaccharidesis
(b)
Interpretation: The members of the given pair of monosaccharides whether possess the same molecular formula or not has to be predicted.
Concept introduction: The simplest hydrolyzed form that is obtained from the carbohydrates is known as monosaccharide. The general formula for monosaccharidesis
(c)
Interpretation: The members of the given pair of monosaccharides whether possess the same molecular formula or not has to be predicted.
Concept introduction: The simplest hydrolyzed form that is obtained from the carbohydrates is known as monosaccharide. The general formula for monosaccharidesis
(d)
Interpretation: The members of the given pair of monosaccharides whether possess the same molecular formula or not has to be predicted.
Concept introduction: The simplest hydrolyzed form that is obtained from the carbohydrates is known as monosaccharide. The general formula for monosaccharides is
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Chapter 18 Solutions
EBK GENERAL, ORGANIC, AND BIOLOGICAL CH
- Page 3 of 6 Previous Next For items 16-20, determine the monosaccharide units for each carbohydrate. Choic are: A. B-D-galactopyranose, and D-glucopyranose B. a-D-glucopyranose and D-glucopyranose C. N-acetyl-galactosamine D. B-D-glucuronate-2-sulfate, E. N-acetyl-B-D-glucosamine, and D-glucuronate 16. Maltose 17. Lactose and N-sulfo-D-glucosamine-6-sulfate 18. A-antigen oligosaccharide (end unit) 19. Heparin 20. Hyaluronic acid 344arrow_forwardIndicate whether the following pairs of monosaccharides are aldoses or ketoses. a. D-altrose & D-xylose b. D-arabinose & D-glyceraldehyde c. D-erythrulose & D-psicose d. D-talose & D-gulose e. dihydroxyacetone & D-tagatose f. D-idose & D-threosearrow_forwardRefer to the figure below. Determine whether the given descriptions between the relationship of glucose and galactose is correct or incorrect. * сно ÇHO H OH HO-H H- -OH HO-H HO H- H-OH ČH,OH D-Glucose -H -OH H- -он CH,OH D-Galactose CORRECT INCORRECT Glucose and galactose are both Aldohexoses They constitute the structure of the disaccharide maltose They are epimers at carbon 4 They are not mirror images of each other, neither an enantiomeric pairarrow_forward
- Draw the Fischer projection formula for each sugar and give the importance/use of each. 1. D- glyceraldehyde 2. D- erythrose 3. D- ribose 4. D- deoxyribose 5. D- glucose 6. D- galactose 7. D- fructose 8. D- ribulosearrow_forwardMatch the following sugars with their corresponding descriptions. A. Esculin J. 1. aldonitol G. rhamnose K cellobiose D. Melibiose E. saccharose C. raffinose H. trehalose F. Glucose B. Lactose Arabinose A. a pentose alcohol. B. a disaccharide consisting of glucose and galactose units linked by 3(1-4) glycosidic bond C. a trisaccharide consisting of galactose, fructose and glucose D. a disaccharide consisting of glucose and galactose units linked by a(1-6) glycosidic bond E. a disaccharide consisting of glucose and fructose linked by a1-32 glycosidic bond F. a monosaccharide under aldohexoses G. deoxymannose H. a disaccharide consisting of 2 glucose units linked by a(1-1) glycosidic bond I. glucoside of esculetin. J. a monosaccharide under aldopentoses K. a disaccharide consisting of 2 glucose units linked by B(1-4) glycosidic bondarrow_forwardSugars are technically called carbohydrates, referring to the fact that their formulae are only multiple of C(H₂O). Pentoses therefore have five carbons, ten hydrogens and five oxygen atoms. Ribose is a pentose. Choose from among the following another pentose. A. Fructose B. Ribulose C. Galactose D. Erythrose Monomers are bonded together by which of the following processes? A. Hydrolysis B. Non-hydration lysis C. Ionic Bonding D. Dehydration Synthesisarrow_forward
- Hydrolysis of a mixture of glycerophospholipids may yield the following, EXCEPT: A. Galactose B. Choline C. Serine amino acid D. Phosphatearrow_forwardDefine the following terms: a. lactose b. maltose c. homoglycans d. heteroglycans e. starcharrow_forwardWhich of the following is/are (a) ketopentose? A. threose B. xylulose C. arabinose D. mannosearrow_forward
- Draw the following compounds: a. α- and β-anomers of D-galactose b. aldonic acid, uronic acid, and aldaric acid derivatives of galactose c. galactitol d. δ-lactone of galactonic acidarrow_forwardWhich of the following statements about monosaccharides is true? A. Monosaccharides are classified according to the location of their carbonyl group. B. The penultimate chiral center of a monosaccharide determines its handedness. C. If the carbonyl group of a monosaccharide is terminal then it will react positively with Barfoed's and Seliwanoff's tests. D. The cyclization of monosaccharides results to the formation of a cyclic ether. E. The existence of anomers is due to the mutarotation along the reference carbon.arrow_forwardGiven below is the structure of tallose.Answer the following questiona. what is the maximum number of stereoisomers can tallose have?b. how many chiral carbons does it have?c. what is the configuration of tallose is it D or L sugar?d. what type of monosaccharide is it?arrow_forward
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