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What is an antibiotic ?
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- A chemical compound produced by a living organism that inhibits the growth of other organisms
- A compound synthesised by a living organism that inhibits the growth of microbes
- A synthetic compound inhibiting the growth of other organisms
- A synthetic compound inhibiting the growth of bacteria
Correct Option: D
Antibiotics, also known as antimicrobial drugs, are drugs that fight infections caused by bacteria. Alexander Fleming discovered the first antibiotic, penicillin, in 1927. The term “antibiotic” originally referred to a natural compound produced by a fungus or another microorganism that kills bacteria which cause disease in humans or animals. Some antibiotics may be synthetic compounds (not produced by microorganisms) that can also kill or inhibit the growth of microbes.