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cytology vocabulary
list 1
| Term | Definition |
|---|---|
| cytology | a branch dealing with the structure , function ,and life history of cells |
| cell | basic unit of life |
| organelle | structure that is specialized to perform a distinct process within a cell |
| organism | any individual living things |
| unicellular | consisting of a single cell |
| multicellular | have many cells |
| prokaryotic | a cell lacking a true membrane nucleus |
| prokaryotes | any cellular organism that has no nuclear membrane |
| eukaroytic | cell that has nucleus and other membrane bound orangelles |
| eukaryotes | an organism having unit a cell type that contains oraganelles |
| cell theory | theory that states that all organism are made of cells ,all cells are produced by other living cells and the cell is the most basic unit of cell |
| virus | they are not made up of cells and can only reproduced in a live host |
| tissues | group of cells that work together to perform a similar function |
| organs | group of different types of tissues that work together to perform a specific function or related function |
| diffusion /passive transport | it do not requires energy and it moving freely |
| osmosis | diffusion of water molecules across a semipermeable membrane from an area higher water concentration area of lower water concentration |
| active transport | energy requiring movement of molecules across a membrane from a region of lower concentration to a region of higher concentration |
| semi-permeable | only contain small molecules |
| phagocytosis | uptake of solid particle into a cell by engulfing the particle |
| pinocytosis | the transport of fluid into a cell by means by the cell membrane |