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A&P Chapter 3
Cells: The Living Units
| Question | Answer |
|---|---|
| Basic living structure | CELL |
| 3 PARTS OF THE CELL | 1.Plasma Membrane 2.Cytoplasm 3.Nucleus |
| Intracellular Fluid | Cytoplasm |
| Extracellular fluid | any fluid outside of cell |
| Fluid mosaic model | Phospholipid bilayer |
| "sugar coating" used for cells to ID other cells | glycocalyx |
| Proteins mounted in the PM | Integral proteins |
| Proteins loosely mounted to integral proteins | Peripheral proteins |
| Junction that forms an impermeable junction. | Tight junction |
| Communicating junction between cells | Gap junction |
| Fluid between cells | Interstitial fluid or intercellular fluid |
| Diffusion along a concentration gradient | Simple diffusion |
| Diffusion aided by protein carriers or channels | Facilitated diffusion |
| Diffusion of water | Osmosis |
| Soln with the same tonicity as the cell | Isotonic |
| Soln with higher tonicity than the cell | Hypertonic |
| Cells immersed in hypertonic soln will: | Shrink (crenate) |
| Soln with lower tonicity that the cell | Hypotonic |
| Cells immersed in hypotonic soln will: | Swell and burst (lyse) |
| Movement against a concentration gradient | Active transport |
| Transport requiring energy | Active transport |
| Sodium potassium pump is an example of: | primary active transport |
| Vesicles move substances out of the cell in: | exocytosis |
| Cell ingests a substance in the process of: | endocytosis |
| Vesicles move a substance across a cell in: | transcytosis |
| A cell engulfing solid material | Phagocytosis |
| A cell engulfing fluid | Pinocytosis |
| Cellular material between the PM and nucleus | Cytoplasm |
| Components of cytoplasm | cytosol, organelles, inclusions |
| powerhouse of the cell | mitochondria |
| traffic director and packaging center | golgi apparatus |
| disintegrator bodies | lysosomes |
| small motile extensions of the cell | cilia |
| long motile extensions of the cell | flagella |
| tiny extensions of the PM | microvilli |
| Cell control center | Nucleus |