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Cell Anatomy
| Term | Definition |
|---|---|
| cytology | the study of cells |
| Light Microscopy | visible light passes through the cell |
| Transmission Electron Microscopy | a beam of electrons passes through the cell; can magnify about 100x greater than LM |
| Scanning electron microscopy | beam of electrons bounces off surface of the cell to provide a 3D study of the cell |
| Passive transport | does not require energy from the cell |
| diffusion | materials move from area of higher concentration down to area of lower concentration |
| active transport | requires energy from the cell; materials are moved up or against concentration gradient |
| simple diffusion | small/non polar molecules transported |
| osmosis | movement of water from region of higher to lower concentration |
| facilitated diffusion | large/polar molecules-requires a specific transport protein |
| bulk filtration | diffusion of both liquids and dissolved molecules forced across a plasma membrane by hydrostatic pressure |
| Primary active transport | ATP is used as energy |
| secondary active transport | energy from different stored gradient |
| bulk transport | moves large molecules or bulk structures across the plasma membrane; requires energy |
| exocytosis | materials to be secreted out of cell and are packaged into membrane vesicles |
| endocytosis | process by which a cell takes material into the cell packaged into vesicles |
| cytoplasm | all materials (solid and liquid) between plasma membrane and nucleus |
Created by:
sarakemmet
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