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celltransport

cell transport

TermDefinitionhints/examples
cholesterol a lipid embedded in the phospholipids of the cell membrane that help the cell membrane to tolerate temperature changes
concentration gradient the difference between the amount of a substance between two distinct areas - such as the inside and outside of a cell a gradient is like a slope
endocytosis the process of a cell engulfing a substance with its cell membrane "-endo" means within
equilibrium a state that occurs when the amount of a substance is equal between two distinct areas- such as the inside and outside of a cell "equi-" means equal
exocytosis the process of getting rid of a substance from within a cell using the cell membrane "exo-" means out of (or exit)
extracellular fluid the fluid (with its solutes) found outside of a cell "extra-" means outside of
facilitated diffusion the movement of a substance from a high to low concentration through cell membrane proteins facilitate means to help
hydrophilic an attraction to water "hydro-" means water "-philic" means to love
hydrophobic a 'fear' or repulsion of water "hydro-" means water "-phobic" means fear
hypertonic when compared to another solution, a solution that has a greater solute concentration "hyper-" means above or more than
hypotonic when compared to another solution, a solution that has a lesser solute concentration "hypo-" means below or less than
intracellular fluid the fluid (with its solutes) within a cell "intra-" means within
isotonic when compared to another solution, a solution with equal solute concentration "iso-" means the same or equal
membrane proteins any number of proteins found attached to the phospholipid of a cell membrane
osmosis the movement of water from an area of high to low concentration through a cell membrane
passive transport the movement of a substance from high to low concentration - by diffusion, does not require the use of cell energy (ATP)
phospholipid a lipid that makes up the basic structure of a cell membrane the phospholipid has a 'phospho" (phosphate) head and two "lipid" tails
semipermeable the ability for some substances to pass through a barrier (cell membrane) and others not "semi-" means partial
simple diffusion the movement of a substance from a high concentration through the phospholipid bilayer of the cell membrane
active transport the movement of a substance across a cell membrane that requires cell energy (ATP) - sometimes from a low to high concentration gradient
Created by: mrjaeckels
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