protein main functions
To build new cells and many functional components of cells
* As a component of hardened structures, such as hair and nails
* As enzymes to speed chemical reactions
* In clotting compounds in blood* To build antibodies that fight disease
* As compounds that help maintain fluid and pH balance
* As transporters
* To make certain hormones
* As an energy source (Only undercertain conditions)
protein definiton
large, complex organic molecules(polypeptides) made up of amino acids