Concept explainers
(a)
Interpretation:
The curved-arrow mechanism for the lysozyme-catalyzed oligosaccharide hydrolysis at
Concept introduction:
Enzymes are the biological catalyst. They are used to increase the
(b)
Interpretation:
The reaction between the
Concept introduction:
Enzymes are the biological catalyst. They are used to increase the rate of reactions which are occurring in a biological system. Enzymes are proteinous in nature. Enzymes have several free functional groups in them which can act as active sites of enzymes.
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Organic Chemistry
- Draw the structures (using chair conformations of pyranoses) of the following disaccharides.(a) 4-O-(a-d-glucopyranosyl)-d-galactopyranose(arrow_forwardSuggest how you could distinguish a sample of glucose from a sample of maltose using Benedict’s reagent. [Hint: maltose is a disaccharide reducing sugar].arrow_forwardArabinoxylan is a copolymer of arabinose and xylose-two five-carbon sugars. A portion of the polysaccharide is shown here. (a) Identify and classify each glycosidic linkage. (b) Based on the structure, do you think arabinoxylan functions as a storage polysaccharide or a structural polysaccharide? Explain your reasoning. HOH,C. OH Но OH OH но но OH Но LO. Но HOH,C HOH2C НО OH OH CH,OHarrow_forward
- Amygdalin is a toxic component in the pits of bitter almonds, peaches, and apricots. Q.) Name the two monosaccharide units in amygdalin and describe the glycosidic bond by which they are joined.arrow_forwardDraw the structure of: (a) a polysaccharide formed by joining D-mannose units in 1->4-ß-glycosidic linkages; (b) a polysaccharide formed by joining D-glucose units in 1->6-a-glycosidic linkages. The polysaccharide in (b) is dextran, a component of dental plaque.arrow_forwardSuppose you have two simple sugars, D-arabinose and L-tagatose. Both sugars cyclize and form a non-reducing disaccharide with the glycosidic bond oriented in the alpha position relative to each monosaccharide's structure. Give the full biochemical name for this disaccharide.arrow_forward
- Which of the following saccharides has INCORRECT paired description/s? * D-mannose: Monosaccharide: Prevents UTI Cellobiose: Disaccharide: With 2 glucose units Heparin: Acidic polysaccharide: Blood coagulant N-acetyl-galactosamine: Amino sugar: Present in type-A blood Keratin sulfate: Structural Polysaccharide: Most heterogenous GAGSarrow_forwardMonosaccharides are cyclic hemiacetals that can react with alcohols to form acetals. The bond between the anomeric carbon atom of the monosaccharide and the oxygen atom of the -OR group is called a glycosidic bond. The name of the linkage contains the designation alpha (a) or beta (B) (from the anomeric carbon in the glycosidic bond) and the carbon numbers for the carbons from the two sugars. For this example, the linkage is an a-1,4 glycosidic bond. Н НО HO اب تاب است H OH H OH -OH Н Н OH H + OH HO a anomer CH₂OH H Н H О OH H2C OH Н H Classify the glycosidic linkage in the disaccharide. Н OH Н H OH OH OH - HO Н H HO OH OH Н CH₂OH H -OH H OH он H H -OH Н OH an a glycosidic bond Н OH + H2O о о о о В-1,6 a-1,6 a-1,1 B-1,5 I DON'T KNOW YET submitarrow_forwardDraw the structure of the disaccharide maltose (-D-glucopyranosyl (1→4)-D-glucopyranose). Indicate with arrows the reducing end and the acetal functional group.arrow_forward
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