Which polysaccharide is usually found in the cell walls of fungi?

• A. Glycogen
• B. Cellulose
• C. Starch
• D. Chitin

Answer: (D)

Verified step by step guidance

1. Understand the role of polysaccharides in biological structures. Polysaccharides are long chains of monosaccharide units and serve various structural and storage functions in organisms.
2. Identify the common polysaccharides and their functions: Glycogen is a storage form of glucose in animals, Cellulose is a structural component in plant cell walls, Starch is a storage form of glucose in plants, and Chitin is a structural component in fungal cell walls and exoskeletons of arthropods.
3. Focus on the structural polysaccharides: Cellulose and Chitin are both structural, but Cellulose is specific to plants.
4. Recognize that Chitin is the polysaccharide that provides structural support in the cell walls of fungi, similar to how Cellulose functions in plants.
5. Conclude that the polysaccharide found in the cell walls of fungi is Chitin, as it is specifically adapted for this role in fungal biology.