Proteins attract water and hold it within blood vessels, preventing it from freely flowing into the spaces between the cells. this is an example of how protein is used for:
group of answer choices
a. building enzymes, hormones, and other compounds.
b. supporting growth and maintenance.
c. maintaining fluid and electrolyte balance.
d. maintaining ph balance.
e. building antibodies.

Maintaining fluid and electrolyte balance. (Ans. C)

Explanation:

Proteins are present in every living cells. There are different types of proteins are available. Proteins are made up of organic compounds known as amino acids and made up of carbon, nitrogen, hydrogen, oxygen and sulfur.

Maintaining Fluid and electrolyte balance: Albumin and globulin proteins are present in the blood, and they are helping in to maintain fluid balance by keeping water inside the blood. Proteins which are present in blood have ability to keep fluid in the bloodstream. Proteins are helping in the nutrients and fluid exchange between the cell.

So, proteins preventing water from freely flowing into the spaces between the cells by attracting water and hold it within blood vessels. This is an example of how protein is maintaining fluid and electrolyte balance.

since there are no options posted i'll give you a few examples.

a dolphin's flipper, bird's wing, cat's leg.