Covers general terms for cellular transport for AP Biology.
7466936319 | Selectively Permeable | a property of cell membranes that allows some substances to pass through, while others cannot | 0 | |
7466936320 | Phospholipid Bilayer | double layer of phospholipids that makes up plasma and organelle membranes | 1 | |
7466936321 | Integral Proteins | penetrate the hydrophobic core and often span the membrane (transmembrane) | 2 | |
7466936323 | Glycoproteins | proteins that have carbohydrates covalently bonded to them | 3 | |
7466936324 | Glycolipids | lipid that have carbohydrates covalently bonded to them | 4 | |
7466936325 | Passive Transport | transport that does not require the cell to expend energy (high to low concentration) | 5 | |
7466936326 | Active Transport | energy-requiring process where a substance moves against the concentration gradient (low to high concentration) | 6 | |
7466936327 | Diffusion | net movement of a substance down a concentration gradient (high to low) | 7 | |
7466936328 | Facilitated Diffusion | diffusion of solutes across a membrane, with the help of transport proteins | 8 | |
7466936329 | Osmosis | diffusion of water across a selectively permeable membrane | 9 | |
7466936330 | Hypertonic | solute concentration is greater than inside the cell, cell loses water; plant cells plasmolyze, animal cells crenate | 10 | |
7466936331 | Hypotonic | solute concentrations in less than inside the cell, cell gains water; animal cells lyse, plant cells have ideal turgor pressure | 11 | |
7466936332 | Isotonic | solute concentrations are the same on both sides of the membrane, cell does not gain or lose water; ideal condition for animal cells | 12 | |
7466936333 | Sodium-Potassium Pump | actively pumps Na+ ions out and K+ ions in, 3 Na leave for every 2 K that enter | 13 | |
7466936336 | Exocytosis | exporting macromolecules by fusion of vesicles with the plasma membrane | 14 | |
7466936337 | Endocytosis | importing macromolecules by forming vesicles derived from plasma membrane | 15 | |
7466936338 | Phagocytosis | part of the cell membrane engulfs large particles or entire cells (cell eating) | 16 | |
7466936339 | Pinocytosis | part of the cell membrane engulfs small dissolved substances or fluid droplets in vesicles (cell drinking) | 17 | |
7466936343 | Fluid Mosaic Model | states that the membrane is a fluid structure with a mosaic of various proteins embedded in it | 18 | |
7466936344 | Transport Proteins | allow passage of hydrophilic substances across the membrane | 19 | |
7466936345 | Concentration Gradient | a difference in concentration across a distance | 20 | |
7466936348 | Aquaporins | facilitates the passage of water into a cell | 21 | |
7466936351 | cholesterol | A large, ring shaped lipid found in cell membranes. Its presence helps to maintain flexibility and fluidity in the membrane. | 22 |