Homeostatis Flashcards
(22 cards)
why cant plasma protiens move across capillary walls
too large
what 2 compartments make up the ECF
interstitial fluid
plasma
which sex has, on average a higher proportion of body H2O
males
what is “feed forward control”
receptors permit the system to anticipate change and therefore activate response earlier
would you find more chlorine inside or outside the cell
outside
would you find more sodium inside or outside the cell
outside
would you find more potassium inside or outside the cell
inside
would you find more HCO3 inside or outside the cell
outside
to pass through the lipid bilayer molecules need to meet what 3 requirements
small
lipophillic (hydrophobic)
not charged
O2 can pass easily through the lipid bilayer true or false
true
N2 can pass easily through the lipid bilayer true or false
true
how do ions such as Na and K pass through the lipid bilayer
protein channels
what charge does the inside of a cell usually have
negative
how does glucose pass the cell membrane
carrier-mediated transport protien
Osmolarity describes the number of what in a solution
particles
in a solution what determines the tonicity
the number of non-penetrating solute particles
an isotonic solution has the same number of non penetrating solute particles as what
ECF
how would a solution with fewer non-penetrating solute particles be described
hypotonic
how would a solution with a greater number of non penetrating particles be described
hypertonic
what happens to cells in hypotonic solutions
swell
what happens to cells in hypertonic solutions
shrink
what does in vivo mean
in a living organism
