VII. Draw the structure of melezitose (either in Haworth or in conformer): a-D-glucopyranosyl- (1–3)-B-D-fructofuranosyl-(2→1)-a-D-glucopyranoside Is it a reducing sugar?
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- Which structure is the correct Haworth representation of a-D-glucopyranosyl-(1-3)-B-D-galactopyranose? он OH но- OH OH OH OH он он он но- но HO OH OH он он OH OH Он OH он OH OÀ DWhich of the following is the correct systematic name of the disaccharide shown? α-D-glucopyranosyl-(1→3)-β-D-galactopyranose α-D-gulopyranosyl-(1→4)-β-D-glucopyranose α-D-gulopyranosyl-(1→4)-β-D-galactopyranose α-D-glucopyranosyl-(1→3)-β-D-glucopyranosegal(a1–6)gal(a1–→6)glc(a1→2B)fru. Which of the complete IUPAC of this tetrasaccharide? O a-D-galactopyranosyl-(1-6)- a-D-galactopyranosyl-(1-6)- a-D-glucopyranosyl-(1+→2)-B-fructofuranoside O a-D-galactopyranosyl-(1-6)-B-D-galactopyranosyl-(1→6)- a-D-glucopyranosyl-(1+2)-B-fructofuranose O a-D-galactopyranosyl-(1–6)- a-D-galactopyranosyl-(1–6)- a-D-glucopyranosyl-(1+→2)-B-fructofuranose a-D-galactopyranosyl-(1-6)-B-D-galactopyranosyl-(1→6)- a-D-glucopyranosyl-(1+2)-B-fructofuranoside
- Which of the following is the correct systematic name of the disaccharide shown? OH он но но но- OH Он a-D-glucopyranosyl-(1-3)-B-D-galactopyranose O a-D-glucopyranosyl-(1–3)-B-D-glucopyranose O a-D-gulopyranosyl-(1-4)-B-D-glucopyranose O a-D-gulopyranosyl-(1-4)-B-D-galactopyranoseWhich of the following best describes the molecule below? . CHOH H H CH OH H OH OH CH OH OH H. OH B -D-galactopyranosyl-(104)-D-glucopyranose a -D-glucopyranosyl-(102)-D-fructofuranoside a -D-glucopyranosyl-(102)-D-glucofuranoside B -D-galactopyranosyl-(104)-D-fructopyranoseWhat sugar units make up the structure shown? ÇH,OSO;- но Po- H H. ÇOO- NHCCH, H OH H H OH O D-Glucuronate and N-Acetyl-D-galactosamine-6-sulfate O D-Glucuronate and N-Sulfo-D-glucosamine-6-sulfate O D-Iduronate and N-Acetyl-D-galactosamine-6-sulfate O D-Glucuronate and N-Acetyl-D-glucosamine-6-sulfate
- s N-acetyl-β-D-glucosamine a reducing sugar? What about D-gluconate? Is the disaccharide GlcN(α1→1α)Glc a reducing sugar?Identify the structure of O-a-D-sorbopyranosyl-(24)-B-D-glucopyranose below. The following structures will help: НО Н ОН х Н H H D-sorbose Н OH CH₂OH Н Н Н OH HO Н H HO H н HO ОН Н н Н О ОН O H Н CH₂OH OH OH н 0 CH2OH Н OH Н H OH Н CH₂OH H ОН Н OH Н Н Н РО OH Н HO OH н н -O CH2O Н O H H OH н Н OH CH₂OH о CHOH H H Н Ко OH H OH Н Н OH Н OH Н OH Н CH₂OH -OCHOH H OH O CH OH Н OH Н Н CH₂OH ОН он OH OH H OH H O OH CH₂OH OH ОН Н O OH OH D-glucose Н ОН Н ОН ОНMatch the following structural composition of each polysaccharide with its identity Linear homoglycan of glucose connected by α1-4 linkages Linear sulfated chains of alternating β-D-galactopyranose and 3,6-anhydro- α-galactopyranosyl units Poly-β-Dmannopyranosyluronic acid and/or Poly-α-L-gulopyranosyluronic acid Repeating Poly-D-galacturonic acid residues deacetylated straight-chain amino-polysaccharide polymer linked in a β(1-4) type of linkage a. Alginate b. amylose c. chitosan d. carrageenan e. Pectin
- Match the following structural composition with the corresponding polysaccharide Linear homoglycan of glucose connected by α1-4 linkages Branched glycan formed by alternating units of D-galactose and L-galactose Linear sulfated chains of alternating β-D-galactopyranose and 3,6-anhydro- α-galactopyranosyl units Poly-β-Dmannopyranosyluronic acid and/or Poly-α-L-gulopyranosyluronic acid Repeating Poly-D-galacturonic acid residues…. Draw Haworth projections for the following: (a) CHO in a-furanose form. Name the sugar. H-C-OH | HO-C-H H-C-OH CH,OH (b) The L isomer of (a) (c) a-D-GlcNAc (d) a-D-FructofuranoseWhat sugar units make up the structure shown? D-Iduronate and N-Acetyl-D-galactosamine-6-sulfate D-Glucuronate and N-Acetyl-D-glucosamine-6-sulfate D-Glucuronate and N-Sulfo-D-glucosamine-6-sulfate D-Glucuronate and N-Acetyl-D-galactosamine-6-sulfate