Question Detail
Question
The bacterial cell wall contains the following except: A. Proteins B. Lipids C. Polysaccharides D. Cellulose
Correct Answer
Option D is the correct answer.
Detailed Explanation
The bacterial cell wall is primarily composed of peptidoglycan, a polymer made of sugars (polysaccharides) cross-linked by short peptides (proteins). Lipids are also found, especially in the outer membrane of Gram-negative bacteria. Cellulose is a major component of plant cell walls, not bacterial cell walls.
Hint
This is a key structural carbohydrate found in plants, but bacteria use a different, unique polymer.