Question

All of the following statement about membrane carbohydrates is true, except

• A. Most are bound to proteins.
• B. Some are bound to lipids.
• C. They are added to proteins in the golgi apparatus.
• D. They show little diversity.

Answer 1

The correct option is D They show little diversity.

In biological membranes carbohydrates are bound to proteins (glycoproteins) or lipids (glycolipids). The glycosylation reactions occur in Golgi apparatus. The bound carbohydrates are responsible for surface properties like adhesion and interaction and antigenic properties of the membranes. The diversity of cell types, thus, is dependent on the diversity of carbohydrates attached to proteins and lipids. Thus, the correct answer is option D.