The statement is True. The presence of nitrogen makes proteins unique.
EXPLANATION:
Nitrogen is found in amino acids which make proteins. Nitrogen is a "naturally occurring element" that is essential for the growth and reproduction in plants as well as animals.
Proteins form the structural components of muscles, organs and tissues and also enzymes and hormones that are essential for carrying out the various life processes.
Nitrogen is also found in organic and inorganic materials in addition to constituting major portion of the air in the atmosphere.
