Passive Transport

principles of transport

11 cards·by browncl4

In passive transport materials move ___ a concentration gradient from a high concentration to a low concentration (___).

down (downhill)

In passive transport there's ____to move the material.

no free energy used

In passive transport differential concentrations on either side of the membranegeneratesan _____(when referring to ___), which may be___.

osmotic pressure, water movement and measured

In passive transport electrical gradients may alter ___.

ion movements

What are the types of ion movements?

diffusion, osmosis and facilitated diffusion

Diffusion____.

movement of any particle; usually a solute

Osmosis___.

movement of a solvent

In most biological systems the solvent is __.

H2O

Water against membrane creates ____.

osmotic pressure

Facilitated diffusion___.

Carrier molecule (a protein) used to help move (facilitate) other molecules across membranes

Facilitated diffusion a type of ____.

mediated transport