Cell Membrane and Cell Transport Flashcards

3197194437	Head	Hydrophilic end of phospholipid	0
3197194438	Tails	Hydrophobic end of phospholipid	1
3197194441	Passive transport	Diffusion of molecules across a cell membrane	2
3197194442	Diffusion	The tendency of molecules to spread out evenly in available space	3
3197194443	Osmosis	Diffusion of water across a cell membrane	4
3197194444	Facilitated Diffusion	Diffusion of molecules down the concentration gradient with the help of a transport protein	5
3197194445	Concentration gradient	Movement of molecules from high concentration to low concentration	6
3197194447	Isotonic	Solute concentration outside the cell is the same as solute concentration inside of the cell	7
3197194448	Hypertonic	Solute concentration outside the cell is greater that solute concentration inside of the cell; Cell loses water	8
3197194449	Hypotonic	Solute concentration outside the cell is less than solute concentration inside of the cell; Cell gains water	9
3197194450	Plasmolysis	In a hypertonic solution around a plant cell the cell membrane pulls away from the cell wall	10
3197194452	Active transport	Movement of molecules across the cell membrane that requires energy; Molecules go against the concentration gradient from low to high	11
3197194453	Sodium-Potassium pump	Example of active transport to transmit nerve signals in the body	12
3197194454	Exocytosis	Occurs when a cell exports bulky materials out of the cell	13
3197194455	Endocytosis	Occurs when a cell takes in large molecules by forming vesicles	14
3197194456	Phagocytosis	Cell membrane changes shape and surrounds the particle and engulfs it.	15
3197194457	Pinocytosis	The membrane bends inward allowing the particle to 'dissolve' through the membrane	16