2 Osm/L

4 Osm/L

3 Osm/L

5 Osm/L

2 Osm/L

4 Osm/L

1 Osm/L

3 Osm/L

The process of producing energy within cells

The maintenance of a stable internal environment within an organism

The process by which organisms change their internal environment

The regulation of external environmental conditions

They burst

They swell

They remain the same size

They shrink

They burst

They dilate

They constrict

They remain unchanged

it moves through aquaporins in the membrane.

the bilayer is hydrophilic.

water movement is tied to ATP hydrolysis.

it is a small, polar, charged molecule.

it moves through hydrophobic channels.

Aquaporins

Ions and molecules

Intracellular proteins

Interstitial fluid and blood 

The ECF will increase by 500 ml and the ICF by 500 ml.

The ECF will increase by 333 ml and the ICF increases by 666 ml.

There are no changes in either the ECF or ICF.

The ECF increases by one litre with no change in the ICF.

remove; increase

increase; remove

increase; increase

remove; remove

They can move laterally along the plane of the membrane.

They have hydrophilic tails in the interior of the membrane

They frequently flip-flop from one side of the membrane to the other.

They occur in an uninterrupted bilayer, with membrane proteins restricted to the surface of the membrane.