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ch 5 sec 2 h bio
chapter 5 section 2 terms and definitions
| Question | Answer |
|---|---|
| active transport | movement of materials from an area of lower concentration to an area of higher concentration |
| sodium-potassium pump | a carrier protein that transports na+ and k+ ions |
| endocytosis | the process by which cells ingest external fluid, macromolecules, and large particles, including other cells |
| pinocytosis | the transport of solutes or fluids |
| phagocytosis | the movement of large particles or whole cells |
| phagocytes | cells that allow lysosomes to fuse with the vesticles that contain the ingested bacteria and viruses |
| exocytosis | the process by which a substance is released from the cell through a vesticle that transports the substance to the cell surface and then fuses with the membrane to let the substance out of the cell |