Question

Which characteristics do glycogen and starch share?

A) Both are found in animal cells
B) Both are composed of glucose monomers
C) Both serve as structural components in cell walls
D) Both are insoluble in water

Answer 1

Glycogen and starch share the characteristic of being composed of glucose monomers, and both serve as energy storage molecules.

Step-by-step explanation:

The characteristics that both glycogen and starch share are that they are both polymers composed of glucose monomers and serve primarily as energy storage molecules rather than structural components. While starch is found mainly in plant cells, glycogen is found in animal cells. Both of these polysaccharides have a branched structure, although glycogen is more highly branched than the amylopectin component of starch. Neither is used as a structural component in cell walls; that function is specific to cellulose, which is also composed of glucose but has a different linkage that makes it a linear molecule. Therefore, the correct answer to which characteristics glycogen and starch share is B) Both are composed of glucose monomers.