TRANSPORT IN CELLS

Looks at HOW all the substances which a cell needs or produces move in and out of it.

PASSIVE TRANSPORT

DIFFUSION

OSMOSIS

REMEMBER - Osmosis is ONLY how WATER MOLECULES diffuse!
DIFFUSION_of_water_across_a_semi_perm_membrane.jpg
water molecules passing through a selective membrane
Osmosis2.jpg

video - DIFFUSION & OSMOSIS


ACTIVE TRANSPORT