Physical Transport: Diffusion And Osmosis, Etc

Front 1

____ molecules diffuse faster than heavier molecules.

Back 1

Lighter
(Graham's Law)

Front 2

Increased temperature ____ the motion of molecules and rate of diffusion.

Back 2

increases

(Grahms law)

Front 3

Water moves from higher concentration to _____ concentration across a semipermeable membrane.

Back 3

lower
(osmosis)

Front 4

_____ refers to the process by which molecules intermingle as a result of their kinetic energy.

Back 4

Diffusion
also: the net movement of one type of molecule through space as a result of random motion (entropy)

Front 5

The rate of diffusion can be increased with an ____ in thermal energy

Back 5

increaase

Front 6

the rate of diffusion can be slowed by increasing the ____ of the molecules.

Back 6

size

Front 7

____ increases molecular movement and the rate of diffusion.

Back 7

heat

Front 8

_____ is the movement of solvent-usually water- through a semi-permeable membrane from lower concentration to higher concentration.

Back 8

osmosis

Front 9

____ is the movement of solute and solvent across a permeable membrane until equilibrium is achieved.

Back 9

diffusion

Front 10

Physiological membranes are _____ this means that they are permeable to water but not to solute particles such as proteins because they are too big or too polar to cross.

Back 10

semipermeable
-water attempts to distribute equally on both sides

Front 11

If two solutions of different concentrations are separated by a semipermeable membrane which is permeable to the smaller solvent molecule (H2O) but not to the larger solute molecule (protein) then the solvent will diffuse across the membrane from the ____ concentrated solution to the ____ concentrated solution.

Back 11

less concentrated to more concentrated

Front 12

Tonicity is the relative concentration of solutions is osmotic systems. What are the three tonicities?

Back 12

-Isotonic= equal concentrations of particles(0.9NS)
-Hypertonic= greater concentration (3% NS)
-Hypotonic= lesser concentration (0.45 NS)