The endomembrane system consists of the endoplasmic reticulum, Golgi bodies, lysosomes, and vacuoles. Malfunctions of these organelles can cause diseases such as Alzheimer's, Parkinson's, cancer, diabetes, fatty liver disease, alcoholic liver disease, dyschromatosis universalis hereditaria, cutis laxa, Wilson's disease, Angelman syndrome, Gaucher disease, Niemann-Pick disease, Fabry disease, Tay-Sachs disease, mucopolysaccharidoses, Pompe disease, and Danon disease. The document discusses the endomembrane system and diseases linked to malfunctions of its components.