click below
click below
Normal Size Small Size show me how
Cells Processes
Term | Definition |
---|---|
Cell | The smallest unit of life that can perform all life functions: eat, grow, and reproduce. |
Tissue | A group of cells that work together to do the same job. |
Organ | A group of tissues that work together to perform body functions. |
Diffusion | The movement of material from an area of high concentration into an area of low concentration. |
Osmosis | The movement of water across a semipermeable membrane. |
Passive Transport | When cells don’t use any energy to move materials in and out of the cells. |
Active Transport | When cells have to use energy to move materials in and out of the cell. |
Endocytosis | When a cell surrounds a large particle in a pseudopod and uses energy to pull it into the cell. |
Exocytosis | When a cell surrounds a particle or a vesicle and pushes it out of the cell. |