Question

which describes the complex carbohydrate cellulose?
it is composed of a complex arrangement of glucose molecules.
it is composed of a complex arrangement of many kinds of macromolecules.
it is composed of a complex arrangement of chitin molecules.
it is composed of a complex arrangement of multiple disaccharides.

Explanation:

Cellulose is a polysaccharide. Polysaccharides are complex carbohydrates made up of many monosaccharide units. Glucose is a monosaccharide. Cellulose is composed of glucose molecules linked together in a complex arrangement. Chitin is a different polysaccharide (found in fungi cell walls and arthropod exoskeletons). Disaccharides are made of two monosaccharides (e.g., sucrose = glucose + fructose). Macromolecules is a very broad term (proteins, nucleic acids, polysaccharides are all macromolecules), but cellulose specifically is made of glucose (a monosaccharide), not many kinds of macromolecules.

Answer:

It is composed of a complex arrangement of glucose molecules.