What elements make up proteins?
Is it carbon, oxygen, hydrogen, and nitrogen?
Or is it carbon, oxygen. hydrogen, nitrogen, and sulfur?
Proteins, being made up a diverse set of amino acids, have, in addition to carbon, hydrogen, oxygen, and nitrogen, the elements sulfur and selenium. ^.^
1 nitrogen 2 potassium 3 phosphorus 4 calcium
Calcium
Proteins are organic molecules composed of carbon, hydrogen, oxygen, nitrogen, and sometimes sulfur. The fundamental building blocks of proteins are amino acids, which contain all of these elements. However, not all amino acids contain sulfur. So, to answer your question, the elements that make up proteins are carbon, hydrogen, oxygen, nitrogen, and occasionally sulfur.
To arrive at this answer, you can refer to scientific literature or textbooks that discuss the structure and composition of proteins. These resources typically cover the various elements found in proteins and their chemical properties.