DIALYSIS Flashcards
KIDNEY FAILURE
There is a retention of salts, water, urea, and
metabolic acid.
process of separating molecules in a
solution by the difference in their rates of
diffusion through a semipermeable
membrane
DIALYSIS
separation of suspended
colloidal particles from dissolved ions or
molecules of small dimensions (crystalloids) by
means of their unequal rates of diffusion
through the pores of semipermeable
membranes.
DIALYSIS IN CHEMISTRY
Dialysis first employed in 1861 BY ?
British chemist, Thomas Graham
separating molecules in solution
based on their molecular weight and
differential diffusion rates through a semi
permeable membrane.
DIALYSIS
any substance that is made of
particles that are of an extremely small size:
larger than atoms but generally have the size
of 10-7 cm ranging to 10-3 cm.
COLLOID
substance that has some or
all of the properties of a crystal or a
substance that forms a true solution and
diffuses through a membrane by dialysis.
CRYSTALLOID
process in which there is a
diffusion of a solvent through a
semipermeable membrane
OSMOSIS
lets some molecules to pass through it
while not letting others
* Acts as a strainer/ Filter
SEMI-PERMEABLE MEMBRANE
Only certain substances are allowed to
diffuse
SELECTIVE DIFFUSION
process by which an ion or molecule
process through a cell wall via a
concentration gradient or from an area of a
high concentration to a low concentration
area
PASSIVE DIFFUSION
- Solution that resists changes in pH when acid
or alkali is added to it. - Weak acid or alkali together with one of its
salts
BUFFER
replacement of one set of buffer
salts with another set
BUFFER EXCHANGE
Usually called dialysis fluid, bath, or solution
* A solution of pure water, electrolytes, and
salts such as bicarbonate and sodium.
* Purpose is to pull toxins from the blood into
the dialysate
* Works through a process called diffusion.
DIALYSATE
type of dialysis in which
electrodes are placed on the sides of the
membrane. In this way, positive ions can pass
through one side of this membrane while the
negatively charged ions can pass through
the other side of the membrane. This causes
acceleration in the process of dialysis
ELECTRODIALYSIS
