endocytosis

single celled pinocytosis egestion absorption nucleolus contractile drawing biological vacuole educational pseudopod presentation anatomical cell structure fresh water disease digestion isolated infection nutrition paramecium eukaryotic phagocytosis amphibian healthcare medicine heterotrophs pseudopods amoeba protozoan microbe unicellular microscopic animal ameba pseudopodia microorganism protozoa nucleus microbiology virus bacterium organism body protista laboratory receptor education medical biochemistry lysosome plasma phospholipid molecule exocytosis science cellular system diagram transport health surface biology process extracellular graphic mechanism vector endocytosis protein endosome cytoplasm lipid vesicle anatomy membrane