Question

plant cells use a molecule called cellulose to build cell walls. animals use glycogen (form of glucose) to store energy in muscle and liver cells until ready for use. cellulose and glycogen (form of glucose) can be classified as
a fatty acids.
b enzymes.
c carbohydrates.
d nucleic acids.

Explanation:

Cellulose and glycogen are polysaccharides. Polysaccharides are a type of carbohydrate. Carbohydrates are one of the four major macromolecules in living organisms. Fatty acids are part of lipids. Enzymes are proteins. Nucleic acids are DNA and RNA.

Answer:

C. carbohydrates