Question

which characteristic do glycogen and starch share?
o they are proteins.
o they are the most energy - rich organic molecules.
o both are storage forms of glucose.
o both are difficult to digest.

Explanation:

Glycogen is the storage - form of glucose in animals, and starch is the storage - form of glucose in plants. They are carbohydrates, not proteins. Lipids are the most energy - rich organic molecules. And they are not difficult to digest as they can be broken down into glucose units.

Answer:

C. Both are storage forms of glucose.