
Question 3 Hint: D-glucose, D-mannose and D-galactose are aldohexoses D-mannose is a C-2 epimer of D-glucose...
Draw the structure of lactose give Blucopyranose. (D-galactose is a C-4 epimer of D-glucose) is: B-D-galactopyranosyl-(1,4)-a-D-
6). Draw the zig-zag structure of C-2 epimer and C-3 epimer of D-glucose. Draw one possible chair conformer of C-2 epimer.
6). Draw the zig-zag structure of C-2 epimer and C-3 epimer of D-glucose. Draw one possible chair conformer of C-2 epimer.
Draw Fischer-projections for the hexitols obtained by reducing a mixture of D-mannose, D-glucose, D-fructose and D-galactose.
Which of the following is the C3 primer of D-glucose? A)D-Mannose B)D-Galactose C) D-Gulose D) D-Allose
CARBOHYDRATES POST-LAB QUESTIONS [52] 19. Review the Fischer structures of D-galactose, D-glucose, and D-mannose Identify each structure. [12 pts) CHO CHO CHO Н. -OH HO -H H -OH HO -H HO H HO -H Н. OH H OH HO -H H -OH H ОН Н. ОН CH2OH CH2OH CH2OH D-Glucose D-Mannose TD-Galactose 20. Would either D-galactose or D-mannose form an osazone identical to the glucose osazone? [5 pts] 21. Explain: [5 pts) [5 pts] 22. What structural feature do all...
Which of the following are epimers? a) glucose and fructose, b)glucose and galactose, c) galactose and mannose, OR d) lactose and maltose
a) Draw the C-3 epimer of a-methyl-(D-glucopyranoside b) Write out the name of this sugar completely c) What is the name of the C-5 epimer of (D)-mannose
Question 10 Glucose is also known as O fructose O galactose O dextrose O mannose
11. Draw the structures of a-D-glucose and D-mannose (both cyclic form). Which bond(s) in a-D-glucose must be broken to change its configuration to B-D-glucose? Which bond(s) to convert D-glucose to D-mannose? Which bond(s) to convert one "chair" form of D-glucose to the other?
A D-Glucose B. D-Fructose C. L-Glyceraldehyde 5. What is an epimer? In the following structures indicate the two structures and the specific carbon atoms that are making them epimers. (4 marks) H =0 Н. 1 11 CON HO CHI H. 2 HOCH HC=ON HOSCH 3 H-C-OH CHOH CULOH CHOH