The intracellular hydrolysis of endogenous proteins is correct:

A) is a highly specialized process, localized in lysosomes and proteasomes; b) it is necessary for the replacement of used proteins c) it is necessary for the replacement of proteins that have not been properly synthesized, either from the point of view of the primary structure (replacement of one or more amino acids) or of the secondary, tertiary and / or quaternary structures; d) plays an important role in controlling the cell cycle evolution, including the initiation of apoptosis; e) all the above answers are correct