Question

how do proteins regulate fluid balance? proteins form polymers of water. water degrades proteins. proteins attract water. water attracts proteins.

Explanation:

Proteins in the body, especially albumin in the blood, create an osmotic gradient. They are large molecules that cannot easily cross cell membranes. This causes water to move towards areas with a higher concentration of proteins (from an area of lower solute - protein concentration to an area of higher solute - protein concentration) via osmosis. So, proteins attract water to regulate fluid balance.

Answer:

Proteins attract water.