What are three molecules that nitrogen is found in?
amino acids, DNA and RNA, and ATP
on the average, a protein molecule contains _____ percent of the nitrogen by weight 16------NOVA NET ANSWER Nitrogen is found in protein molecules. All living things have protein which is made from carbon, hydrogen, oxygen and nitrogen, sometimes sulfur and phosphorous as well. The building blocks of protein are amino acids. Amino acids all have nitrogen in them. t