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cytology
| Term | Definition |
|---|---|
| Cytology | A branch of biology that studies the structure and function of plant and animal cells. |
| Cell | The basic unit of structure & function in all living things. |
| Organelle | The structures inside the cell that act as specialized organs |
| Organism | Refers to any individual living thing that can react to stimuli, reproduce, grow, and maintain homeostasis |
| Unicellular | Single celled organism |
| Multicellular | Having or consisting of many cells or more than one cell to perform all vital functions. |
| Prokaryotic | A type of cell lacking a membrane-enclosed nucleus and other membrane-enclosed organelles; found only in the domains Bacteria and Archaea. |
| Prokaryotes | Cells that have genetic material that is NOT contained in a nucleus |
| Eukaroytic | A type of cell that has a membrane-enclosed nucleus and other membrane-enclosed organelles. All organisms except bacteria and archaea are composed of eukaryotic cells. |
| Eukaryotes | Cells that contain a nucleus in which their genetic material is separated from the rest of the cell. |
| Cell theory | All living things are composed of cells. Cells are the basic units of structure and function in living things. New cells are produced from existing cells. |
| Virus | a small infectious agent that replicates only inside the living cells of other organisms. |
| Tissues | Any of the distinct types of material of which animals or plants are made, consisting of specialized cells and their products. |
| Organs | A group of tissues in a living organism that have been adapted to perform a specific function. |
| Diffusion/Passive transport | The diffusion of particles or substances across the cell membrane without the use of energy. |
| Osmosis | Diffusion of water through a selectively permeable membrane. |
| Active transport | Energy requiring process that moves material across the cell membrane against a concentration gradient. For example: from a lower concentration to a higher concentration. |
| Semi-permeable | Especially allowing the passage of a solvent but not of certain solutes. |
| Phagocytosis | Cellular eating |
| Pinocytosis | Cellular drinking |