Cellulose is a linear polymer which is a basic structural component of plant cell walls - HSC - SSCE Chemistry - Question 4 - 2001 - Paper 1

To identify the correct representation of a cellulose polymer, it is important to note that cellulose is composed of β-D-glucose units linked by β(1→4) glycosidic bonds. The structure should show a linear arrangement of these glucose units with appropriate hydroxyl (–OH) groups.

1. Examine Structures: Review each option (A, B, C, D) for the arrangement of glucose units:

   • Look for linear connectivity and the presence of alternating orientation of hydroxyl groups.

2. Identify Bonds: Confirm that the bonds between glucose units are β(1→4) glycosidic bonds. This bond type will result in each glucose unit being flipped in orientation relative to its neighbor.

3. Select Correct Option: Based on the checks above, option (B) correctly represents a part of cellulose as it displays the appropriate linear structure with β-linkages.

In conclusion, the correct answer is (B).