Bio-chem NWHSU EXAM 3- bio membranes and transport + first ten slides of bioenergetics questions and answers

membrane lipids, proteins, carbohydrates - ANSWER-Main components of biological membranes? main functions of the biological membrane - ANSWER-What are separation of aqueous compartments and selective permeability the main functions of? it is their only membrane structure - ANSWER-Why do bacteria have a higher % of protein in their membrane than humans and animals? fluid mosaic model - ANSWER-The biological membrane is represented by the _____ _____ _____. different - ANSWER-Different membranes throughout the body have (different/the same) functions. (As in, a nuclear and lysosomal membrane will be the same or different?) change - ANSWER-Red blood cells have the ability to ______ their membrane phospholipid content during apoptosis and other cell systems. uncatalyzed transbilayer diffusion - ANSWER-This is also known as "flip flop" diffusion- it is one way lipids can move in the membrane. uncatalyzed lateral diffusion - ANSWER-This is a very fast, not catalyzed type of membrane lipid movement. flippase - ANSWER-This enzyme helps move lipids from the outer membrane layer to the cytosolic membrane layer. floppase - ANSWER-This enzyme helps move lipids from the inner cytosolic membrane to the outer membrane. scramblase - ANSWER-This enzyme moves lipids any direction in the membrane- towards equilibrium. alpha helical beta barrels - ANSWER-What are the two structural classes of integral transmembrane proteins?