| A | B |
|---|
| homeostasis | steady state |
| homeostasis | balance of intermal environment |
| selectively permeable | only certain materials may pass through |
| semipermeable | only certain materials may pass through |
| Fluid Mosaic Model | explanation of membrane structure and function |
| lipoprotein | membrane composition |
| lipoprotein | lipids + proteins |
| phospholipid | glycerol + 2 fatty acids + phosphase group |
| fluidity | lateral movement of phospholipids and proteins |
| saturated fatty acid | no double bonds between carbons |
| unsaturated fatty acid | double bonds between carbons |
| unsarurated fatty acid | percentage affects the fluidity of the membrane |
| choloserol | percentage affects the fluidity of the membrane |
| transport proteins | permeases |
| absorption | taking in mecessary raw materials |
| secretion | releasing a manufactured product |
| excretion | releasing cell waste |
| egestion | releasing food waste |
| diffusion | tendency of particles to disperse into any available volume |
| Kinetic energy | energy of motion |
| Brownian motion | random movement of particle due to their kinetic evergy |
| concentration gradient | from high concentration to low concentration |
| enzymes | catalyze chemical reactions |
| dynamic equilibrium | equal concentrations throughout |
| diffusion pressure | pressure caused by differences in temperature, pressure, or concentration |
| passive transport | diffusion of a substance across a biological membrane |
| osmosis | diffusion of water across a semipermeable membrane |
| solution | homogeneous mixture that may vary in its composition |
| solvent | component of a solution in the greater quantitiy |
| solute | component of a solution on the lesser quantity |
| isoosmotic/isotonic | solution posessing the same concentration of solutes |
| osmotic balance | dynamic equilibrium of water |
| hypoosmotic/hypotonic | solution possessing a lower concentration of solutes and a higher concentration of water |
| turgor pressure | internal water pressure on cell membrane |
| cytolosis | splitting or bursting of cell |
| hyperosmotic/hypertonic | solution possessing a highter concentration of solutes and a lower concentration of water |
| plasmolysis | shrinkage of cell due to water loss |
| osmoregulation | control of water balance |
| facilitated diffusion | movement of particles across a biological membrane with the use of transport proteins |
| active transport | movement of particles against the concentration gradient |
| endocytosis | process in which a cell takes in macromolecules or large particles by forming vacuoles ore vesicles |
| phagocytosis | engulfing large, solid particles of food using psuedopodia |
| psuedopodia | "false feet"; temporary cellular extensions |
| pinocytosis | engulfing of extracellular droplets by using channels |
| exocytosis | expulsion of large particles or large quantities of materials from the cell |
