I believe the answer is D. Sedimentary
The primary function of enzymes is to cut and paste substrates in an organism.
I would correct my friend by telling him that basically all food contain mixture of energy yielding nutrients. for instance, in addition to proteins meat also contains carbohydrate in form of glycogen which is the storage form of carbohydrates in animals. about half of the total glycogen in the body is stored in the muscles whereas other half is stored in the liver
