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AP Biology

definition

TermDefinition
membrane structure phospholipids arranged in bilayer globular protein
fluid mosaic model mosaic of protein's floats in/on the fluid lipid bilayer like boats on a pond
mosaic all jumbled together, bunch of different things
glycolipid chain of lipids hanging
glycoprotein chain of proteins hanging with sugars
phospholipid bilayer flexible matrix, barrier to permeability
trans membrane proteins integral membrane proteins
interior protein network peripheral/intracellular membrane proteins
cell surface markers glycoproteins and glycolipids
phospholipids glycerol, 2 fatty acids, and a hydroxyl group
transporters transport
enzymes make or break bonds
trans membrane domain spans the lipid bilayer hydrophobic amino acids arranged in a helices
pores extensive nonpolar regions with a trans membrane protein can create a pore through the membrane
B barrel (alpha) cylinder of alpha sheets in the protein secondary structure
diffusion movement of molecules from high to low concentration
transport across membranes major barrier to crossing biological membrane, hydrophobic interior that repels polar molecules but not nonpolar molecules
Created by: bailey._.grogan