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- 14.) Consider the polysaccharide to the right? a) What is the linkage between the sugar units? b) Is this a reducing sugar? Explain.1. What is N-glycan microheterogeneity?9. Lactose exists in two anomeric forms, Draw both anomeric forms of lactose. Why no anomeric forms of sucrose have been reported?
- Which of the following is the B-anomer of D-galactose? CHO H-C-OH HO-C-H но-с—Н Н-С—ОН CH2OH CH,OH OH -O, OH OH CH,OH OH он он CH2OH O. OH OH OH OH CH2OH O OH OH OH pone of theseWhich of the following is an anomer of a-D-galactopyranose? CH,OH он он он H он ÇH,OH OH он H он H он ÇH,OH он H. H OH он ÇH,OH OH он он он HHILactose exists in two anomeric forms, but no anomeric forms ofsucrose have been reported. Why?
- 13. One or more of the compounds shown below will satisfy each of the following statements. Not all compounds may be used; some may be used twice. Put the letter(s) in the blank. (a) Found in chitin. (b) An L-saccharide. (c) The first residue attached to asparagine in N-linked glycans. (d) A uronic acid. (e) A ketose. CH,OH COO CO- H OH H OH ОН Н но OH OH H H но OH Но - CH3 óso, NHC- OH (a) (b) (c) CH,OH CH,OH CH,OH c=0 CHOH C=0 H-C-OH CH,OH но-с—н ČH,OH CH,OH (d) (e) (f) 우Is the sugar in the nucleotide deoxytibose or ribose? How do you know?b-Galactosidase is an enzyme that hydrolyses only b(1,4)linkages of lactose. An unknown trisaccharide is convertedby b-galactosidase into maltose and galactose. Draw thestructure of the trisaccharide
- АCTIVTY 6.2.7 Describe the common structural features and differences for each pair 1. Cellulose and glycogen 2. D-glucose and D-fructose 3. Maltose and Sucrose 4. Chitin and Amylopectinwhat is the difference between glucosidic linkage and glycosidic lingake852. what is the difference between maltose maltase, sucrose-sucrase and lactoselactase?