Question

Fungus has cell walls like plants, but instead of being made of cellulose, they are made of ________, which is the same material in the exoskeleton of a beetle.

1) chitin
2) keratin
3) collagen
4) lignin

Answer 1

Fungus has cell walls like plants, but instead of being made of cellulose, they are made of chitin .

Fungal cell walls are made of chitin, which is also the substance found in the exoskeletons of beetles and other arthropods, providing structural support and protection.

The correct answer is option 1) chitin.

Step-by-step explanation:

Fungi have cell walls similar to those of plants; however, unlike plant cell walls made of cellulose, fungal cell walls are made of a substance called chitin. Chitin is a tough complex carbohydrate, specifically a polysaccharide, which is also found in the exoskeletons of insects and other arthropods. This component provides structural strength, protecting the cell from desiccation and some predators, similar to how an exoskeleton protects insects. Therefore, the material that makes up the cell walls of fungi and the exoskeleton of a beetle is chitin.

The correct answer is option 1) chitin.