Which of the following was the first antibiotic discovered?

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OSSC CGL 2022 Official Paper (Held on: 11th Oct Shift 2)
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  1. Amoxicillin
  2. Azithromycin
  3. Clindamycin
  4. Penicillin

Answer (Detailed Solution Below)

Option 4 : Penicillin
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Detailed Solution

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The correct answer: Penicillin 

Key Points 

  • Antibiotics are medicines used to kill or weaken bacteria and also protozoa to some extent.
  • Antibiotics can be natural, semi-synthetic, or synthetic.
  • Penicillin in 1928 by Alexander Fleming was obtained from Penicillium Notatum.
  • These are a group of antibacterial drugs obtained from Penicillium fungi.
  • Penicillin fights the bacteria by attacking the cell wall-forming substances (peptidoglycans).
  • Anne Miller was the first patient who got treated using penicillin in 1942.

Latest OSSC Combined Graduate Level Updates

Last updated on Jun 12, 2025

-> OSSC CGL Final Merit List has been released on the official website. 

->The merit list consist the names of the candidates found suitable after the CV round.

->Earlier,The OSSC CGL Call Letter had been released for the Document Verification (Advt No.1249/OSSC).

-> Interested candidates registered from 29th November 2024 to 28th December 2024.

-> The recruitment is also ongoing for 543 vacancies (Advt. No. 129/OSSC). The Prelims was held on 20th October 2024 and thee Mains Exam will be scheduled in February/ March 2025.

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-> To score well in the exam, you may enhance your preparation by solving the OSSC CGL Previous Years' Papers.

-> Candidates can also attend the OSSC CGL Test Series which helps to find the difficulty level.

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