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biology
| Term | Definition |
|---|---|
| cell | Basic unit of life |
| cell theory | A theory in biology that includes one or both of the statements that the cell is the fundamental structural and functional unit of living matter and that the organism is composed of autonomous cells with its properties being the sum of those of its cells |
| organelle | A specialized cellular part |
| organism | An individual constituted to carry on the activities of life by means of parts or organs more or less separate in function but mutually dependent |
| cytology | study of cells |
| nucleus | controls almost all cell activity |
| diffusion | the passive movement of particles |
| osmosis | movement of water |
| active transport | the movement of a chemical substance by the expenditure of energy against a gradient in concentration or in electrical potential across a plasma membrane |
| phagocytosis | ingest or engulf other cells or particles. |
| pinocytosis | the ingestion of liquid into a cell by the budding of small vesicles from the cell membrane. |
| semipermable | a type of biological or synthetic, polymeric membrane that will allow certain molecules or ions to pass through it by diffusion |
| mitochondria | power house of the cell |
| ribosomes | proteins are made there |
| cell wall | protects the cell (plant cell) |
| viruses | small infections throughout the body. |
| centriole | helps with cell division |
| chloroplasts | photosynthesis occurs in this organelle |
| phylum | level of classification |
| endoplasmic reticulum | network of membranous tubules within the cytoplasm of a eukaryotic cell, continuous with the nuclear membrane |
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alta11
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