Chapter Five

Front 1

framework of the membrane

Back 1

phospholipid bilayer

Front 2

water moves from a high concentraion to an area of low concetraion through

Back 2

osmosis

Front 3

regions that are embedded in the hydrophobic region of the phospholipid bilayer

Back 3

transmembrane proteins

Front 4

covalent attachment of a lipid to an amino acid side chain within a protein

Back 4

lipid anchored protein

Front 5

transmembrane and lipid anchored proteins

Back 5

integral or intrinsic membrane proteins

Front 6

noncovalently bound to regions of integral membrane proteins, bound to the polar head groups of phospolipids

Back 6

peripheral membrane or extrinsic proteins

Front 7

move freely within the plane of the membrane

Back 7

phospholipids

Front 8

less likely to interact wich makes the membrane more fluid

Back 8

shorter acyl tails

Front 9

double bonds in acyl tails makes the bilayer

Back 9

more fluid

Front 10

presence of cholesterol

Back 10

affects fluidity

Front 11

anchors membrane proteins in plce

Back 11

cytoskeleton

Front 12

addition of sugar groups to glycoproteins and glycolipids

Back 12

glycosylation

Front 13

__ and ___ work together to synthesie most lipids in eukaryotes

Back 13

cytosol and endomembrane system

Front 14

makes sure materials goes into the correct leaflet

Back 14

flippase

Front 15

half of a phospholipid bilayer

Back 15

leaflet

Front 16

non-polar molecules move dreely through the membrane in response to a gradient

Back 16

passive diffusion

Front 17

polar molecules cross the membrane by a pore or channel

Back 17

faciliated diffusion

Front 18

molecules move against the gradient using chemical energy

Back 18

active transport

Front 19

determines which molecules can pass through

Back 19

hydrophobic interior of the membrane

Front 20

tendency of a solute to disperse evenly throughout the solvent over time

Back 20

diffusion

Front 21

the solution outside the cell has a higher solubility than the inside of the cell, causes cell to shrivel and shrink, water flows out

Back 21

hypertonic cell enviorment

Front 22

water flows into cell,cell swells, solution outside cell has lower soubulity inside the cell

Back 22

hypotonic

Front 23

pushes plasma membrane against cell walland helps cell maintain shape and size

Back 23

turgor pressure

Front 24

plants wilt because water leaves plant cells

Back 24

plasmolysis

Front 25

transmembrane proteins that provide passageway for movement of ions and hydrpholilic molecules across membranes

Back 25

transport proteins

Front 26

form and open passageway for direct diffusion

Back 26

channels

Front 27

carriers, principalpathway for the uptake or organic molecules

Back 27

transporters

Front 28

transport single molecules or ions

Back 28

uniporter

Front 29

transport 2 or more ions in the same direction

Back 29

symporter/cotransporter

Front 30

transport 2 or more ions in opposite directions

Back 30

antiporter

Front 31

contents released outside the cell

Back 31

exocytosis

Front 32

occurs in ER or golgi apparatus

Back 32

glycoslyation