Question

wood and paper are composed of
a chitin.
b cellulose.
c glycogen.
d cholesterol.
e lipid.

Explanation:

Cellulose is a major component of plant - cell walls. Wood comes from plants and paper is made from wood pulp, so they are composed of cellulose. Chitin is in fungal cell walls and exoskeletons of arthropods. Glycogen is an energy - storage molecule in animals. Cholesterol is a lipid important in cell membranes and hormone synthesis. Lipids are a broad class of hydrophobic molecules.

Answer:

B. cellulose