LAB 7: MOVEMENT OF MOLECULES Flashcards
a physical no-living process that occurs because of the kinetic energy of molecules
diffusion
is the process of particles, which are sometimes called solutes, moving through a solution or gas from an area with a higher number of particles to an area with a lower number of particles
concentration gradient
when molecules are evenly distributed
equilibrium
if there is a large difference in concentration gradient , diffusion occurs rapidly. vice versa
steepness
small molecules vibrate more quickly thus they scatter and farther and faster
size
as molecules absorb heat they react much faster
temperature
the diffusion of water molecules through a selectively permeable membrane
osmosis
the solution containing more solute is
hypertonic
the solution containing less solute
hypotonic
same solute concentration
isotonic
diffusion of solute molecules through a selectively permeable membrane
dialysis
contraction of the protoplast of a plant cell as a result of loss of water from the cell.
plasmolysis
the disintegration of a cell by rupture of the cell wall or membrane.
lysis