Q. Which hormone was first isolated from human urine?
A) Auxin
B) ABA
C) Ethylene
D) Gibberellic acid
Explanation
Auxin (derived from Greek work auxin, which means to grow) was first isolated from human urine. Kogl and Heagen Smith (1931) isolated three chemicals from human urine and named them as auxin
Reviewed by Dr. Abubacker
Physics Educator & NEET/JEE Specialist
Ph.D. in Physics with 19+ years of teaching experience.