Question

which of these is a difference between starch and glycogen?
glycogen is made of amino acids, starch is made of sugars
glycogen is found in animals, starch in plants
starch is found in animals, glycogen in plants
starch contains nitrogen, glycogen does not

Explanation:

Both starch and glycogen are polysaccharides made of sugar - glucose monomers. Starch is the energy - storage molecule in plants, while glycogen is the energy - storage molecule in animals. Neither is made of amino acids and neither contains nitrogen.

Answer:

Glycogen is found in animals, starch in plants