Osmosis

Osmosis

Diffusion of water

Aquaporins

Channel proteins that moves water across membranes

• water is polar and can’t diffuse with polar molecules well

apply

The rules of diffusion ? to osmosis

Tonicity

Describes a solution compared to the other side of a membrane

• if one side is more, the other is less (relative)

Hypertonic

High [concentration] / less water

• shriveled / plasmolyzed

Isotonic

same [concentration]

• normal / flacid

Hypotonic

lower [concentration] / more water

• lysed / turgid / swolen