Answer:
Lysosome contains many hydrolytic enzymes that helps in the breakdown of many types of biomolecules.
Development of lysosome requires many components like lysosomal membrane proteins, hydrolases, etc which comes from endoplasmic reticulum, Golgi apparatus and plasma membrane in the form of vesicles.
So packets of protein collected in a vacuole might merge with lysosome to make its membrane. Some proteins called lysosome-associated membrane protein forms a protective covering inside the membrane called glycocalyx which protects the lysosomal membrane from its hydrolytic enzyme.
So the packets of protein collected in a vacuole might merge with lysosomes to forms its membrane and helps in the proper functioning of lysosome.
