Genes provide instructions for making clotting factor proteins. The diagram to the left is an example of just one of hundreds of thousands of different proteins made in the cells of your body. What other types of proteins do you think your body makes? List your ideas below.

Amino acids contain the elements carbon, hydrogen, oxygen, nitrogen, and sometimes sulfur. of the 20 amino acids found in humans, 11 are called "nonessential" because they can be manufactured by the body when needed. which elements in these 11 amino acids are commonly obtained from the metabolism of sugar molecules?