Answer:
Proteins are responsible for the mass and fat of much of our bodies (and other organisms). The instructions for making protein are encoded in DNA. These genes provide the sequence of building blocks known as nucleotides. This string of amino acids then folds into different shapes. The structure of proteins determines what a molecule can do. Proteins contain carbon, hydrogen, oxygen, and nitrogen.
Explanation:
Kindly pardon me: I ain't so sure of the first two answers.