Physiology 2

intracellular solutes

Nonpenetrating:: assume that all ________ are.

Tonicity

________:: describes a solution based on its effects on the volume of a cell placed in the solution.

Isosmotic

________:: the same osmolarity in relation to another solution.

Osmosis

________ depends on:: the number of particles in a given volume of solution.

Osmosis

________:: the diffusion of water across a semipermeable membrane up a solute concentration gradient.

osmosis

the diffusion of water across a semipermeable membrane up a solute concentration gradient

osmosis depends on

the number of particles in a given volume of solution

osmolarity

= molarity * particles/molecule

hyperosmotic

higher osmolarity in relation to another solution

hypoosmotic

lower osmolarity in relation to another solution

isosmotic

the same osmolarity in relation to another solution

tonicity

describes a solution based on its effects on the volume of a cell placed in the solution

hypertonic

water diffuses out, shrinking

hypotonic

water diffuses in, swelling

lysis

a very hypotonic solution causes

isotonic

water diffuses normally, no effect to the cell

nonpenetrating solutes

only solutes that effect osmolarity and tonicity

body fluid osmolarity

300 mOsm

nonpenetrating

assume that all intracellular solutes are