Science Flashcards
Osmosis
the diffusion of water
diffusion
movement of molecules across a cell
facilitated diffusion
movement of molecules along the concentration gradient using protein channels and carrier protein
hypotonic solution
more water and less solute
hypertonic solution
less water and more solute
isotonic solution
solvent and solute are equal on both sides of the cell membrane
concentration gradient
the amount of substance in a space
endocytosis
a cellular process that allows cells to bring substances into themselves
exocytosis
a cellular process that moves large molecules and waste out of the cell
active transport
the movement of particles against a concentration gradient and requires the cell to use energy (low-high)
passive transport
the movement of particles across a cell membrane without the use of energy. Goes with the concentration gradient (high-low)
3 types of passive transport
diffusion, osmosis, and facilitated diffusion
2 types of active transport
endocytosis and exocytosis
the diffusion of water
osmosis
movement of molecules across a cell
diffusion