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Cytology Vocabulary
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Term | Definition |
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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 |