A vesicle is a small, membrane-bound compartment within a cell that contains materials involved in various cellular processes.
This is a process where cells absorb material (like proteins) from outside by engulfing it with their cell membrane, forming a vesicle.
This is the opposite of endocytosis. It's when cells expel waste or secrete substances contained in vesicles out into their environment.
These are special types of vesicles that contain enzymes to break down waste materials and cellular debris inside the cell.