Refer to Exhibit 2A The carbohydrate shown is a a monosaccha

Refer to Exhibit 2A. The carbohydrate shown is:

a. a monosaccharide

b. a ketose

c. a hexose

d. all of these

e. none of these

Refer to Exhibit 2A. The carbohydrate shown is:

a. the D-isomer

b. the L-isomer

c. both D- and L-

d. neither D- or L-

e. it is impossible to determine based upon this structure

rcle the best answer. Exhibit 2A: OH H C H OH HO H H C OH OH the Haworth projection

Solution

Q1: The carbohydrate shown is (d) all of these

Explanation: The carbohydrate chain contains 6 carbon atom. So, it is hexose.

The chain has a keto functional group. So, it is ketose.

Q2: The carbohydrate chain shown is (a) the D- isomer

Explanation: In Fischer projection the penultimate carbon of D- sugars are depicted with hydrogen on the left side and hydroxyl on the right side. While L- sugars will be shown with the hydrogen on the right side and the hydroxyl on the left side.