Concept explainers
(a)
Interpretation:
Example for an aldopentose should be given. Chirality centers of compound should be labeled.
Concept Introduction:
Aldo-pentose is a monosaccharide which contains five Cs with
(b)
Interpretation:
Example of a ketohexose should be given. Chirality centers of the compound should be labeled.
Concept Introduction:
Keto-hexose is a monosaccharide that contains six Cs with aldehyde group. The chiral center should be labeled as R or S.
(c)
Interpretation:
Example of a ketotetrose should be given. Chirality centers of the compound should be labeled.
Concept Introduction:
Keto-tetrose is a monosaccharide that contains four Cs with a ketone group. The chiral center should be labeled as R or S.
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- 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 sucrosearrow_forward14. (a) Identify the acetal and the ketal group in the following disaccharide. (b) Decide whether the compound is a non-reducing or reducing sugar. OH НО HƠ HO Н HO Н НО 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 B 1, 6 or 1, 4 linkages. What linkage is used in the disaccharide shown below? s) НО НО НО HO НО -OH OH -H OH CH2OH 16. Draw the structure for 1,4-B-D-galactopyranosyl-D-glucose. ( но- 17. Assign an R/S designation to each chirality center in the following compound: ( CHO НО -OHarrow_forward(i) Which one of the following is a disaccharide : Starch, Maltose, Fructose, Glucose?(ii) What is the difference between fibrous protein and globular protein?(iii) Write the name of vitamin whose deficiency causes bones deformities in children.arrow_forward
- Cellulose, a b(1->4)-linked glucose polysaccharide, differs from starch in that starch is O a b(1->6)-linked glucose polysaccharide O an a(1->4)-linked galactose polysaccharide O an a(1->4)-linked glucose polysaccharide O an a(1->6)-linked glucose polysaccharidearrow_forward(a) Draw the condensed structural formula, and give the name for the dipeptide Pro-Asn. (b) Draw the disaccharide formed by the following two monosaccharide via 1,4-linkage. In your disaccharide structure, circle and label the anomeric carbon and indicate whether you have an alpha (a) or a beta (B) anomer. CH2OH CH₂OH ОН ОН ОН ОН, ОН ОН ОН ОНarrow_forwardThe following trisaccharide derivative is important to human health.What ever the A ring is called, it is linked to the B ring as ?-O-(A Ringyl)-B ringly-C ring?arrow_forward
- (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 alpha or beta 1,6 or 1,4 linkages. What linkage is used in the disaccharide shown below?arrow_forward16.60 Draw the condensed structural formulas for the products from each of the following reactions: (16.2, 16.3) a. CH3-C-OH + NAOH → b. CH3-C-OH + H,O 2 ОН + КОНarrow_forwardA) Define "reducing sugar." (b) Sucrose is a disaccharide composed of glucose and fructose (Glc(1 → 2)Fru). Explain why sucrose is not a reducing sugar, even though both glucose and fructose are.arrow_forward
- Draw 2 monosaccharide units bonded in the manner they are in starch?arrow_forward(i) Which one of the following is a polysaccharide :Starch, Maltose, Fructose, Glucose?(ii) What one difference between a-helix and P-pleated sheet structure of protein.(iii) Write the name of the disease caused by the deficiency of Vitamin B12.arrow_forwardD- and L- designations are used to distinguish between the two possible enantiomers of the monosaccharide, fructose. From the Fischer projection, determine the designation of this monosaccharide. CH,OH A) D B) L H- HO. C) D, L Но- -- D) This monoşiaccharide contains no chiral centers. но -- CH2OH W Type here to search PgUp F11 DII PrtScn Home Endarrow_forward
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