Q. The chemical substances produced by some microbes, which can kill or retard the growth of other microbes are called
A) Ethanol
B) Citric acid
C) Antibiotics
D) Opiates
Explanation
The chemical substances produced by some microbes which can kill or retard the growth of other microbes are called antibiotics. The term antibiotic was coined by Waksman (1942). Penicillin was the first antibiotic to be discovered by Alexander Flemming (1928)
Reviewed by Dr. Abubacker
Physics Educator & NEET/JEE Specialist
Ph.D. in Physics with 19+ years of teaching experience.