Q. Which among the following is the major constituent of proteins, nucleic acids, vitamins and hormones?
A) K
B) N
C) P
D) S
Explanation
Nitrogen is present in almost all the living matter; chiefly macromolecules like proteins, nucleic acids and in amino acids, purines, pyrimidines, porphyrins and coenzymes
Reviewed by Dr. Abubacker
Physics Educator & NEET/JEE Specialist
Ph.D. in Physics with 19+ years of teaching experience.