Return to Contents
 Chapter 25: Carbohydrates 
Ch 25 contents
Carbohydrate Questions
 
Qu 1: What type of stereochemical representation of glyceraldehyde is shown below ?
Qu 2: Assign the configuration of the molecule of glyceraldehyde shown above as R or S and D or L.
Qu 3: Assign the configuration of the molecule of glyceraldehyde shown above as R or S and D or L.
Qu 4: How are the following 2 structures related ? (be as specific as you can !)
Qu 5: For each of the following structures:
 (i) identify the anomeric center (ii) identify it as a hemi-acetal, acetal, kemi-ketal or ketal and (iii) a furanose or a pyranose.
(a)
(b)
(c)
Qu 6: For each of the following structures decide whether the carbohydrate is:
(i) an aldose or ketose, and (ii) a tetrose, pentose or hexose
 
(a)
(b)
(c)
Qu 7: Which of the following sugars are reducing sugars ?
          
(a)
(b)
(c)

Answers ?