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Cytology Vocabulary
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| Term | Definition |
|---|---|
| Cytology | The branch of science under life science that deals with the study of cell structure, function and chemistry |
| cell | The smallest unit of living things. It is made up of a substance called protoplasm |
| Organelle | membrane-bound structure that is specialized to perform a distinct process within the cell |
| Organism | any individual living thing |
| Unicellular | has only one cell |
| Multi-cellular | has many cells |
| Prokaryotic | does not have a true nucleus |
| Prokaryotes | a microscopic single-celled organism that has neither a distinct nucleus with a membrane |
| Eukaroytic | has a true nucleus |
| Eukaryotes | an organism consisting of a cell or cells in which the genetic material is DNA |
| cell theory | organisms are made by cells, all cells come from other cells,and cells are the most basic unit of life |
| virus | infectious particle made only of strands of either dna or rna |
| tissues | group of cells that work together |
| organs | group of differnet types of tissues that work together |
| Diffusion/Passive transport | Dissolved substances have to pass through the cell membrane |
| Osmosis | diffusion of water molecules |
| Active transport | the movement of ions or molecules across a cell membrane |
| Semi-permeable | A membrane that is selectively permeable |
| Phagocytosis | uptake of a soild particle into a cell |
| Pinocytosis | the ingestion of liquid into a cell |