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chapter 5-2.
vocabulary
| Question | Answer |
|---|---|
| movement of molecules from an area of lower concentration to an area of higher concentration requiring energy | active transport |
| carrier protein that moves Na+ ions and K+ ions up the concentration gradient | sodium potassium pump |
| process by which cells ingest external fluid, marcromolecules, and large particles, including other cells | endocytosis |
| small cavity or sac that contain particles in eukaryotic cells | vesicle |
| the transport of solutes and fluids | pinocytosis |
| movement of large particles or whole cells | phagocytosis |
| allow lysosomes to fuse with the vesicles that contain ingested bacteria and viruses before they can harm the animal | phagocyte |
| process by which a substance is released from the cell through a vesicle that transports the substance to the cell surface and then fuses with the membrane to let the substance out of the cell | exoctosis |