Simple explanation about "Degradation of Proteins and Colloids in Daily Life". Thankyou for my junior, all of you have tried :) Protein Degradation is a way to digest what was brought by endocytosis. There are two types of Protein Degradation, Lysosome and Ubiquitin. Lysosome is major digestive organelle for both cytosolic and extracellular molecules. Lysosome also contains many hydrolytic enzymes, like proteases, lipases, glycosidases. Degradation in lysosomes have 5 different mechanisms. Endocytosis, crinophagy, macroautophagy, microautophagy, and direct translocation from cytosol. Ubiquitin is tiny cytosolic protein. Covalently added to proteins destined for degradation and also added post-translationally to lysine residues. A colloid is a substance in which micro