Which of the following best desribes the strucuture of a protein molecule

What is the role of the phospholipid belayer in cellular transport in living cells

Why is it important to study each branch of earth science?

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?