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AP MOD. I-Cells
| Term | Definition |
|---|---|
| plasma membrane | outer boundary of cell |
| cytoplasm | internal cell fluid |
| ribosomes | "protein factories" of cell |
| endoplasmic reticulum | (ER)-network of sacs and canals |
| smooth endopalsmic reticulum | syntesizes chemicals, makes new membrane |
| rough endoplasmic reticulum | collects, folds, and transports proteins |
| golgi apparatus | "chemical processing and packaging center" of cell |
| mitochondria | "power plant" of cell, contain DNA |
| lysosomes | "digestive bags" of cell-eat microbes |
| centrioles | paired organelles, function in cell reproduction |
| microvilli | small finger-like extensions, increase surface area |
| cilia | hairlike extensions, move in unison |
| flagella | propel a cell-only example in humans is "taols" of sperm |
| nucleus | control enter of cell-contains DNA |
| passive transport | does not require energy-down the concentration gradient |
| active transport | requires energy from ATP-up the concentration gradient |
| diffusion | passive transport-substances scatter themselves evenly throughout available space |
| filtration | passive transport-movement of water and solutes |
| osmosis | diffusion of water |
| ion pumps | active transport-protein complex |
| phagocytosis | active transport-mechanism that destroys bacteria |
| pinocytosis | active transport-incorporates fluids or dissolved substances into cells |
| interphase | period when cell is not actively dividing |
| metaphase | second stage-chromosomes align across center of cell |
| prophase | first stage-chromosomes appear, cenrioles move away from nucleus |
| telophase | fourth stage-cell division is complete |
| anaphase | third stage-chromosomes pulled to opposite sides of cell |
| mitosis | process of cell division |
| hypertrophy | increase in cell size |
| atrophy | decrease in cell sze |
| hyperplasia | increase in cell production |
| anaplasia | production of abnormal, undifferentiated cells |