Which one of the following statements about lysosomes is incorrect? If one of the many types of acid hydrolases found in the lysosome is nonfunctional, a lysosomal storage disease can develop. Lysosomes are acidic because they contain acid hydrolases. Lysosomes release the monomeric building blocks (like amino acids and nucleotides) into the cell. Autophagosomes form in the cytosol around old or broken down organelles; later, the autophagic vesicle fuses with a lysosome. Resident lysosomal proteins display a mannose-6-phosphate group which targets them to a late endosome.