Answer:
Stored as fats by cells; used as respiration substrate and released as waste material.
Step-by-step explanation:
The extra protein in animals have many fate. The excess of the proteins are broken down into amino acids and are fed into the cellular respiration to serve as energy source. Some of the excess proteins are released as urea from the body in form of urine. Part of excess protein is absorbed by cells and is stored as fats.