BIOL 190 Lecture Notes - Lecture 6: Thermodynamics, Kinetic Energy, Endergonic Reaction
Document Summary
Moving large quantities of material across the membrane with the help of membrane vesicles. Example: amoeba taking in food, white blood cell engulfing bacteria. Not specified , everything in the liquid is taken in. Only specific molecules bind to a specific receptor. Exocytosis- vesicle is formed inside the cell (secretion-how cells release a large quantity of something) Pancreatic cell releases digestive enzymes to be used in the small intestines. Gap junctions allow neighboring/adjacent cells to communicate- but cells depend on signal transduction pathways for long distance communication. Series of molecular changes that convert a signal received in the outside of the cell"s membrane. To the target molecule/structure in the cell. Involves a cascade of molecular changes, in which a change in one molecule alters another molecule, which then alters a third molecule,etc. (domino effect) Material that takes up space and has mass or. Ability to change the arrangement of matter. Example: rollercoaster that hesitates before it drops.
