Which are types of passive transport?

Answer 1

Diffusion - spreading of molecules in solid, liquid and gas

Osmosis - diffusion of water; affected by tonicity

Facilitated diffusion - transports of substances are facilitated by carrier proteins

Answer 2

Passive transports:

1) Osmosis:

-diffusion

-no energy invested

-2 sugar solutions of different concentrations are separated by a selecetively permeable membrane.

-only the solvent (water) can pass through

2) Diffusion:

-"thermal motion" --molecules spread evenly into available space

-molecules move randomly, but could move in "net direction" (generally more towards one area)

-more -> less = concentration gradient

3) Facilitated transport:

-happens when polar molecules are impeded by lipid layer of plasma membrane

--> transport proteins!!

-CHANNEL protein: protein acts as a channel for the molecules to pass through

-CARRIER protein: opens up outside membrance to trap the molecule, then opens up in cell to release molecule

Answer 3

The four main kinds of passive transport are diffusion, facilitated diffusion, filtration and osmosis. Diffusion is the net movement of material from an area of high concentration to an area with lower concentration.

Answer 4

They are diffusion and osmosis, or diffusion and filtration.

Answer 5

Diffusion, Osmosis, and Facilitated Diffusion.....Have fun with your science homework!

Answer 6

diffusion