Draw a diagram of the linear and ring structures of fructose. Show the biochemical mechanism of cyclization of each and name the resultant ring – including the ring type & anomeric carbon designation. Draw and name an amine version, reduced version, and oxidized version, either in ring or Fisher projection.

Classify the following pairs according to their specific type of isomerism. Write your answer on the space provided. L-Erythrose and D-Erythrose                                          __________________________ a-D-Mannopyranose and b-D-Mannopyranose                 __________________________ D-Glucose and D-Mannose                                             __________________________

Two sugars are epimers to each other. Is it possible to convert one to the other without breaking covalent bond??

1. A carbohydrate has the molecular formula C6H12O6 and has three chiral carbons. Is this a ketohexose, an aldohexose, or an aldopentose? Explain2. Show the Fischer projection formula for the organic product of the reaction between D-ribose and warm, dilute nitric acid. Circle the carbons that are oxidized in this reaction.

AT prod01-cnow-owl.cengagenow.com/ilm/takeAssignment/take portal.arizonacolleg... Examsoft: Apps ✔ Examsoft Apps SimpleNursing ATI mpletion of Organic Chemistry and Survey of Biological Chemistry M A Fischer projection of a monosaccharide is shown below: CHO HO H H-OH H- OH HO H- CH₂OH Classify this monosaccharide (e.g., aldotriose) Does it have the D or L configuration? Submit Answer Retry Entire Group 6 more group attempts remaining

A) Draw the structure of any aldohexose in the pyranose ring form. B) Draw the structure of the anomer of the aldohexose you drew above. C) How many asymmetric carbons (chiral centers) does each of these structures have? D) How many stereoisomers of the aldohexoses you drew are theoretically possible?

10. Which of the following is a reducing sugar? with explanation CH₂OH A B CH2OH CH3 OH OH بسمة CH2OH OH OH OH OH HO. C HOH2C OH HOH2C OH HO OH HO D CH₂OH OH OH E All the above

Draw the structure of alpha-d-glucopyranose in straight chain cyclic, Haworth and cyclohexane-chair format. Draw the structures of two aldohexoses which are diastereomers but not epimers

Write notes on: a) Enediol Rearrangement between D-glucose and D-fructose. b) Difference between Hemiacetal and Acetal functional groups.

Draw a diagram of the linear and ring structures of ribose. Show the biochemical mechanism of cyclization of each and name the resultant ring – including the ring type & anomeric carbon designation. Draw and name an amine version, reduced version, and oxidized version, either in ring or Fisher projection.