Question

Carbohydrates are present in the plasmalemma in the form of

• A. Lignin
• B. Cellulose
• C. Hemicellulose
• D. Phospholipids (glycolipids) and phosphoproteins (glycoproteins)

Answer 1

Answer: (D)

Phospholipids (glycolipids) and phosphoproteins (glycoproteins)

Plasmalemma carries many glycolipids and glycoproteins. Glycolipids and glycoproteins are conjugate biomolecules. Thus, glycolipids are complex lipids to which small carbohydrate is attached. Similarly, glycoproteins are complex proteins to which small carbohydrate is attached.

Cellulose, hemicellulose and lignin are components of the plant cell wall.

So, the correct answer is option D.