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SLS Bio12 CT WW
| Question | Answer |
|---|---|
| Active transport | Requires energy (ATP) to move the vesicles through the cell membrane. Low [ ] to high [ ] |
| Carrier protein | can change shape to move material from one side of the membrane to the other |
| Cell membrane | The layer the allows particles/vesicle move in and out of the cell |
| Channel protein | are embedded in the cell membrane & have a pore for materials to cross. (water has a secret channel to go through due to the polarity of water) |
| Concentration gradient | a gradual change in the concentration of solutes in a solution as a function of distance through a solution |
| Diffusion | the movement of particles spreading from a high concentration to a low concentratio |
| Endocytosis | energy-using process by which cells absorb molecules (such as proteins) by engulfing them. |
| Facilitated transport | Doesn't require energy. Uses transport protein to move particles through the cell membrane. High concentration to Low concentration |
| Fluid-mosaic Membrane model | changing location and pattern of protein molecules in a fluid phospholipid bilayer |
| Glycolipid | Lipid in the membrane that bears a carbohydrate chain attached to a hydrophobic tail |
| Glycoprotein | Protein in the membrane that bears a carbohydrate chain. |
| Hydrophilic | Water loving |
| Hydrophobic | Water fearing |
| Hypertonic | Low amount of water outside the cell, therefore water moves outwards |
| Hypotonic | Low amount of water inside the cell,therefore water moves inward |
| Isotonic | balanced [ ], no net movement |
| Osmosis | Diffusion of water through a selectively permeable membrane |
| Passive transport processes | No energy required, Moves high to low concentration |
| Phagocytosis | Engulfing particles into vesicles |
| Exocytosis | The opposite of endocytosis is exocytosis. Large molecules that are manufactured in the cell are released through the cell membrane. |
| Phospholipid | has a polar hydrophilic head bonded to a two non-polar hydrophobic tail |
| Phospholipid bilayer | two layers of phospholipid with the head facing outwards and the tails facing inwards |
| Pinocytosis | Vesicles formation brings macromolecules into the cell |
| Pressure gradient | is a physical quantity that describes which direction and at what rate the pressure changes the most rapidly around a particular location. |
| selectively permeable | only allow certain molecules to go through by preventing and regulation molecules |
| tonicity | is a measure of the osmotic pressure gradient of two solutions separated by a semipermeable membrane. |
Created by:
wwong
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