Covers general terms for cellular transport for AP Biology.
7901646387 | Selectively Permeable | a property of cell membranes that allows some substances to pass through, while others cannot | 0 | |
7901646388 | Phospholipid Bilayer | double layer of phospholipids that makes up plasma and organelle membranes | 1 | |
7901646389 | Integral Proteins | penetrate the hydrophobic core and often span the membrane | 2 | |
7901646390 | Peripheral Proteins | Bound to the inner or outer surfaces of the membrane and are easily separated from it. | 3 | |
7901646391 | Glycoproteins | proteins that have carbohydrates covalently bonded to them | 4 | |
7901646392 | Glycolipids | lipid that have carbohydrates covalently bonded to them | 5 | |
7901646393 | Passive Transport | transport that does not require the cell to expend energy (high to low concentration) | 6 | |
7901646394 | Active Transport | energy-requiring process where a substance moves against the concentration gradient (low to high concentration) | 7 | |
7901646395 | Diffusion | net movement of a substance down a concentration gradient (high to low) | 8 | |
7901646396 | Facilitated Diffusion | diffusion of solutes across a membrane, with the help of transport proteins | 9 | |
7901646397 | Osmosis | diffusion of water across a selectively permeable membrane | 10 | |
7901646398 | Hypertonic | solute concentration is greater than inside the cell, cell loses water; plant cells plasmolyze, animal cells crenate | 11 | |
7901646399 | Hypotonic | solute concentrations in less than inside the cell, cell gains water; animal cells lyse, plant cells have ideal turgor pressure | 12 | |
7901646400 | Isotonic | solute concentrations are the same on both sides of the membrane, cell does not gain or lose water; ideal condition for animal cells | 13 | |
7901646401 | Sodium-Potassium Pump | actively pumps Na+ ions out and K+ ions in, 3 Na leave for every 2 K that enter | 14 | |
7901646402 | Proton Pump | pumps (H+ ions) out of the cell, creating a proton gradient, protons diffuse back into the cell, which powers ATP production | 15 | |
7901646404 | Exocytosis | exporting macromolecules by fusion of vesicles with the plasma membrane | 16 | |
7901646405 | Endocytosis | importing macromolecules by forming vesicles derived from plasma membrane | 17 | |
7901646406 | Phagocytosis | part of the cell membrane engulfs large particles or entire cells (cell eating) | 18 | |
7901646407 | Pinocytosis | part of the cell membrane engulfs small dissolved substances or fluid droplets in vesicles (cell drinking) | 19 | |
7901646408 | Receptor-Mediated Endocytosis | importing of specific macromolecules by receptor proteins bind to a specific substance which triggers the inward budding of vesicles formed from coated pits | 20 | |
7901646409 | Ligands | molecule that binds to the specific receptor site on another molecule | 21 | |
7901646411 | Fluid Mosaic Model | states that the membrane is a fluid structure with a mosaic of various proteins embedded in it | 22 | |
7901646412 | Transport Proteins | allow passage of hydrophilic substances across the membrane | 23 | |
7901646413 | Concentration Gradient | a difference in concentration across a distance | 24 | |
7901646414 | Turgor Pressure | the pressure that is exerted on the inside of cell walls, caused by the movement of water into the cell | 25 | |
7901646416 | Aquaporins | facilitates the passage of water into a cell | 26 | |
7901646417 | plasmolysis | As a plant cell loses water, it shrivels, and its plasma membrane pulls away from the cell wall | 27 | |
7901646419 | cholesterol | A large, ring shaped lipid found in cell membranes. Its presence helps to maintain flexibility and fluidity in the membrane. | 28 | |
7901662764 | water potential | a measurement that combines the effects of solute concentration and pressure to predict the direction water will flow | 29 | |
7901676018 | solute potential | -iCRT, component of water potential which is proportional to its molarity | 30 | |
7901694076 | pressure potential | component of water potential which is the physical pressure on a solution | 31 |