3 (Cell Homework Chapter 3 (Cellx ors Chapter 3 Cell Bology Macropinocytosis In this streotegy, a large sheet of plasma membrane cailed a ruffle is built over a cytoskeleteal proteit framework, and extends far into the extracellular flud The edge of this sheet first extends outwards, away from the cell surface, and then curves back as half the wichh of a typical human cell (5 um Becouse water freely crosses most plasma membranes, the term “celilufor drinkong” is not very relevem. One mportant use for cepturing large amounts of extracelular fluld is the capture of foreign meterials, inciuding nfectious pathogens, by the white tlood cells that patrol our tissues ond organs Phagocytosis In phegocytosis, large celular extensions called pseudopods reach out and envelope a large particle to be engulfed Structures can be quite large, such as an entire bacterium or cell, the of dofensive proteins caled complement This form of endocyscais differs from macropinocytoais in that the engulfing membrane adheres to the surface of the structute being engulfed ond thère are to fluid spaces as seen in macropinocytosis Phagocytosis is typically conducted by white blood cells in removing foreign msterials and other debris ct being engulfed would already be coated with a layer nd other ust for practice, assign the following labels to their corresponding type of endocytosa a white tiood cel na mph node samples harmones atached to membrane bound receptor proens are aken nto the cel a white blood cell caled a nuroph engufs an iading vesicles formed n plary cells of the blood brain banier foresgn matéral sucfh bacteeunm coated vesicles phagocytosis caveolar vesicles macropinocytosis Rese Tab Caps Shift Ctrl