8. (a). In the box below draw out the structure of a-D-Glucopyranose-(1-2)-ß-D-Mannopyranose- (14)-a-D-Galactopyranose (

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8 A In The Box Below Draw Out The Structure Of A D Glucopyranose 1 2 Ss D Mannopyranose 14 A D Galactopyranose 1 (114.06 KiB) Viewed 251 times

8. (a). In the box below draw out the structure of a-D-Glucopyranose-(1-2)-ß-D-Mannopyranose- (14)-a-D-Galactopyranose (all sugars in the C₁ conformation). (Note: Accuracy of ring structure and bond orientation is critical. If it is ambiguous it is not correct!). (5 marks) (b) In one sentence explain why this is or is not a reducing sugar, and whether it would undergo mutarotation or not. (2 marks) 9. Redraw the following aldopentose as a Fischer projection (on the template given, with hydroxyls and hydrogen atoms horizontal) and assign R or S configuration to the three chirality centers (tick your selected circle to indicate R or S configuration at each carbon). R S CHO HO HH OH C2 1 % C3 CH₂OH O H OH C4 (6 marks) 10. (a) What is the systematic IUPAC name for the below molecule (Place you answer in the box). (b) Is it an a-amino acid? Explain in maximum 2 sentences. H CH3 H3C. COOH H H₂N H