Cellulose is the basic component of which material?

Cellulose is the fundamental component of plants, primarily found in their cell walls, which means it is a key structural material in wood. Wood is made up of various organic compounds, with cellulose being the most abundant, providing rigidity and strength to the plant structure. Cellulose consists of long chains of glucose molecules, which are linked together, forming a complex polysaccharide that contributes to the firmness and durability of wood.

Other materials listed—such as plastic, steel, and glass—are not derived from cellulose. Plastic is typically made from petroleum products, steel is an alloy of iron and carbon, and glass is primarily composed of silica (sand) and is not organic in nature. This makes wood the only correct answer, as it directly incorporates cellulose as its primary component.