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CELL MEMBRANE
bio unit 4
| Term | Definition |
|---|---|
| active transport | transport through cell membrane requiring energy |
| ATP | name of energy required for active transport |
| aquaporin | protein used in osmosis |
| cytolysis | the bursting of cells |
| diffusion | movement of particles in or out of a cell through the concentration gradient |
| concentration gradient | _____ ______ goes from high to low |
| endocytosis | absorbing materials into cell; 3 types |
| pinocytosis | "cell drinking", taking in dissolved molecules through vesicles |
| receptor mediated | "lock & key", uses receptors |
| phagocytosis | "cell eating", engulfing large molecules like food, bacteria, etc into vesicles |
| exocytosis | vesicles inside the cell transport materials outside the cell, fuse with membrane |
| hypertonic | when solute is greater outside the cell than inside |
| hypertonic | water moves out the cell |
| shrink | in hypertonic solutions things ___ (in relation to size) |
| out | water moves ___ of cell in hypertonic solutions |
| plasmolysis | process of water moving out of a cell |
| isotonic | equal amounts of solute inside and outside the cell, equillibrium |
| isotonic | type of solution animal cells require to be at homeostasis |
| hypotonic | when solute is lower outside the cell than inside the cell |
| hypotonic | water moves in the cell |
| swell | in hypotonic solutions things ___ (in relation to size) |
| cytolysis | bursting of cells is called |
| hypotonic | plant cells need ____ solutions to be at homeostasis |
| integral | ___ / channel proteins are embedded completely through the membrane & have a pore for materials to cross |
| peripheral | ____/carrier proteins are on one side of the membrane at a time (can flip), can change shape to move materials across the membrane |
| osmosis | the transport of water across the cell membrane |
| tenacity | concentration of a solute in a solvent |
| semipermeable | allowing only certain material across |
| solution | combination of solute and solvent |
| solute | what is being dissolved |
| solvent | what the substance is being dissolved in |
| turgor pressure | water inside a plant cell pushing against cell membrane |
| heads | phospholid ___ are hydrophilic |
| tails | phospholipid ___ are hydrophobic |
| cholesterol | stabilizes membrane so it's not too fluid and not too solid |
| glycoprotein | aids in cell recognition and made of a protein and a carbohydrate chain |
| 3 | how many Na go out during active transport |
| 2 | how many K go in during active transport |
| Sodium | ____- Potassium pump |
| passive | simple diffusion, facilitated diffusion, and osmosis are example of ____ transport |
| simple | ____ diffusion doesn't require a protein |
| facilitated | ____ diffusion requires a channel protein |
| active transport | Na-K pump, exocytosis, endocytosis are examples of ___ transport |
| against | active transport goes ___ the concentration gradient |
| simple diffusion | how O and CO2 get in the cell |
| hypotonic | Greater concentration of water outside the cell than inside. |
| hypertonic | Lower concentration of water molecules outside the cell than inside. |
| isotonic | Same concentration of water molecules outside the cell as inside. |
| hypertonic | large decrease in turgor pressure |
| Homeostasis | isotonic |
Created by:
niya.777
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