Terms : Hide Images
| 5705197887 | selective permeability | the ability of a membrane to allow some substances to cross and to block some substances | 0 | |
| 5705207574 | amphipathetic molecule | a molecule that has both a hydrophilic and hydrophobic region | 1 | |
| 5705214621 | fluid mosaic | the idea that a membrane is a mosaic of protein molecules floating in a fluid layer of phospholipids | 2 | |
| 5705233159 | cholesterol | an organic molecule that is an important constituent of cell membranes and a precursor of other steroid compounds | 3 | |
| 5705233160 | integral protein | a protein that penetrates the hydrophobic interior of the lipid bilayer |  | 4 |
| 5705238210 | peripheral protein | proteins that are not in the lipid bilayer but are instead loosely bound to the membrane, usually to an exposed part of an integral protein |  | 5 |
| 5705253469 | glycolipid | a molecule consisting of a carbohydrate bonded to a lipid | 6 | |
| 5705260600 | glycoprotein | a molecule consisting of a carbohydrate bonded to a protein | 7 | |
| 5705282104 | aquaporin | a channel protein that allows water to go through a cell membrane |  | 8 |
| 5705291096 | diffusion | the movement of particles from high concentration to low concentration | 9 | |
| 5705311740 | facilitated diffusion | passive diffusion aided by channel proteins in the membrane |  | 10 |
| 5705315454 | osmosis | the diffusion of water across a membrane | 11 | |
| 5705318057 | passive transport | transport that does not require the input of energy |  | 12 |
| 5705321603 | concentration gradient | the region along which the density of a substance increases or decreases |  | 13 |
| 5705327579 | osmoregulation | the control of water balance and solute concentration | 14 | |
| 5705334184 | hypotonic | a solution outside a cell that has a lower concentration of solute than the interior of the cell, causing water to flow into the cell |  | 15 |
| 5705345528 | hypertonic | a solution outside a cell that has a higher concentration of solute than the interior of the cell causing water to flow out of the cell | | 16 |
| 5705353987 | isotonic | a solution outside a cell that has the same concentration of solute as the interior of the cell | | 17 |
| 5705363868 | plasmolysis | the act of a plant cell membrane shrinking away from the cell wall due to being surrounded by a hypertonic solution |  | 18 |
| 5705378523 | ion channels | channel proteins that transport ions | 19 | |
| 5705383110 | gated ion channels | ion channels that "open" or "close" in response to a stimulus (ie electrical) |  | 20 |
| 5705391705 | active transport | transport that requires the input of energy |  | 21 |
| 5705411286 | membrane potential | the voltage across a membrane | 22 | |
| 5705421553 | cotransport | the act of an ATP powered pump transporting specific solutes that indirectly drives the active transport of other solutes |  | 23 |
| 5705430417 | sodium-potassium pump | a protein pump that pumps 3 sodium out of a cell for every 2 potassium pumped into a cell |  | 24 |
| 5705450986 | proton pump | a protein pump that pumps H+ ions across a membrane, creating an electrochemical gradient | 25 | |
| 5705456920 | electrogenic pump | a transport protein that generates voltage across a membrane | 26 | |
| 5705464317 | electrochemical gradient | the combination of an electrical force and a chemical force driving the diffusion of solute across a membrane |  | 27 |
| 5705480072 | pinocytosis | the act of cells taking in extracellular fluid through vesicles in order to obtain molecules dissolved in the fluid |  | 28 |
| 5705509100 | phagocytosis | the act of a cell taking in particles through the creation of food vacuoles |  | 29 |
| 5705494208 | endocytosis | the act of a cell taking something in through the creation of vacuoles or vesicles from the cell membrane |  | 30 |
| 5705530992 | receptor mediated endocytosis | the ability of a cell to aquire bulk quantities of a substance through the use of proteins in the membrane that bind to that substance. |  | 31 |
| 5705500411 | exocytosis | the act of a cell expelling something through the fusion of vacuoles or vesicles to the cell membrane |  | 32 |
| 5705528309 | cell signaling | the act of using a signal molecule and a signal transduction pathway to convey electrical or chemical signals | 33 | |
| 5705581358 | paracrine signaling | a form of cell-to-cell communication in which a cell produces a signal to induce changes in nearby cells, altering the behavior or differentiation of those cells |  | 34 |
| 5705595569 | exocrine signaling | cell signaling pertaining to the secretion of a substance out through a duct | 35 | |
| 5705605716 | hormones | any member of a class of signaling molecules produced by glands in multicellular organisms that are transported by the circulatory system to target distant organs to regulate physiology and behaviour | 36 | |
| 5705618539 | ligand | a molecule that specifically binds to another one, often a larger one | 37 | |
| 5705623437 | G-protein | a protein that binds GTP | 38 |
