lab quiz osmosis Flashcards
hypertonic
more solute outside the cell, water moves out
isotonic
even amount of solute outside the cell, water moves in and out
hypotonic
less solute outside the cell, water moves in
hypertonic animal cell
crenation, cell shrivels up
isotonic animal cell
normal conditions
hypotonic animal cell
lysis, cell bursts
hypertonic plant cell
plasmolysis, membrane separates from wall and looks shriveled, looks like clear square with big clump
isotonic plant cell
flaccid, cell has many dots in it and around it
hypotonic plant cell
normal, turgor, the water fills the vacuole and the cell wall is strong, cell wall outline is very clear in image
how would you make 80 mL of a 4.5% NaCl solution
(π πππππ πππΆπ)/(80 ππΏ) = (4.5 πππππ πππΆπ)/(100 ππΏ), X = 3.6 πππππ πππΆπ
how would you make 635 mL of a 5% ethanol solution?
(π ππΏ ππ‘βππππ)/(635 ππΏ) = (5 ππΏ ππ‘βππππ)/(100 ππΏ), X = 31.75 ππΏ ππ‘βππππ, add this to 603.25 ππΏ water
homeostasis
regulation of body temperature, fluid balance, maintaining pH, etc.
osmoregulation
processes by which cells balance solutes and water between their internal and external
environments, is a homeostatic process
primary organs of osmoregulation
kidneys, also the skin and lungs
parts of the urinary system
abdominal aorta, inferior vena cava, renal artery, renal vein, kidneys, ureter, bladder, urethra
osmolarity
total number of particles in a solution, molarity * # particles = osmoles per liter
osmolarity of hyperosmotic solution
higher Osm outside cell
osmolarity of isosmotic solution
equal Osm outside cell
osmolarity of hyposomotic solution
lower Osm outside cell
weight/volume solutions
% solution = x grams/100mL
volume/volume solutions
% solution = x mL/100mL
