What is it made of?
Proteins are made up of amino acids. They join together to make a chain. There is 20 different types of amino acids some are made up of few. Some proteins are made up of thousands of amino acids. It folds up to make a unique 3D figure. Proteins that carry oxygen around your body are spherical.
What does it do
Proteins help build hair, nails, muscles, and ligaments. It help with their hormones and to help them function. Proteins are in their food that you feed them.