cell process Flashcards
diffusion?
the movement of particles from high to low concentration
what kind of energy is used for diffusion?
passive transport (no energy)
osmosis?
the diffusion of water from an area of high concentration to an area of lower concentration through semi-permable membrane
hypertonic solution?
when water has more of a solute than the cell does.
hypotonic solution?
is a water that is less-concentrated than the cell the water surrounds
isotonic solution?
a solution when the salt concentration is the same as the number of normal cells in the body ( cell will stay the same)
exocytosis?
the process of removing substance from the cells
endocytosis?
the process when the cell membrane folds inward, trapping matter from outside the cell
pinocytosis?
the intake of extracellular fluid with any dissolved substances/tiny particles
phagocytosis?
removes pathogens and cell debris
osmotic gradient?
the difference in concentration between two solutions on either side of a semipermeable membrane
osmotic pressure?
the pressure that would have to be applied to a pure solvent to prevent it from passing into a given solution by osmosis
turgor pressure?
the force within the cell that pushes the plasma membrane against the cell wall
solute?
component in a solution that dissolves in the solvent
solvent?
component in the solution that does the dissolving
