Cells And Cell Transport Flashcards
What is endocytosis
removes portions of the plasma membrane and takes them inside the cell.
the taking in of matter by a living cell by invagination of its membrane to form a vacuole.
What is pinocytosis
Which cells engulf external substances, gathering them into special membrane-bound vesicles contained within the cell
What is exocytosis
a process by which the contents of a cell vacuole are released to the exterior through fusion of the vacuole membrane with the cell membrane.
What is phagocytosis
the ingestion of bacteria or other material by phagocytes and amoeboid protozoans
Diff between diffusion and active transport
facilitated diffusion moves substances down their concentration gradient and active transport moves them against their gradient. facilitated diffusion does not rely on cellular energy and active transport does. facilitated diffusion uses channel or carrier proteins and active transport does not