Passive Transport

By: Daylan G, Payton C, Cooper L, Ethan L, Keegan B, Ryan S

Definition Of Passive Transport

Passive transport is a movement of biochemicals and other atomic or molecular substances across cell membranes without need of energy input.

Compare and Contrast

Active:

-Uses ATP to pump molecules up the concentration gradient

-Transport occurs from a low concentration to high concentration

-Requires cellular energy


Passive:

-Movement of molecules down the concentration gradient

-Occurs from high to low concentration

-Does not require cellular energy


Both:

-Moves oxygen, water, and nutrients into cells and removes waste products

Examples Of Passive Transport

The four main kinds of passive transport are diffusion, facilitated diffusion, filtration and osmosis.