Question:
Antibiotics are produced by .......:
Antibiotics are produced by .......:
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Streptomyces bacteria are the largest natural source of antibiotics.
Updated On: Jun 20, 2026
- Virus
- Bacteria
- Protozoans
- Cyanobacteria
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The Correct Option is B
Solution and Explanation
Step 1: Understanding antibiotics.
Antibiotics are chemical substances produced by microorganisms that inhibit or kill other microbes.
Step 2: Natural producers of antibiotics.
Many antibiotics are naturally produced by bacteria, especially Streptomyces species.
Step 3: Evaluating viruses.
Viruses are non-cellular and do not produce antibiotics.
Step 4: Evaluating protozoans.
Protozoans are not known for antibiotic production.
Step 5: Evaluating cyanobacteria.
Cyanobacteria have limited antibiotic production compared to true bacteria.
Step 6: Final conclusion.
Therefore, antibiotics are mainly produced by bacteria.
Antibiotics are chemical substances produced by microorganisms that inhibit or kill other microbes.
Step 2: Natural producers of antibiotics.
Many antibiotics are naturally produced by bacteria, especially Streptomyces species.
Step 3: Evaluating viruses.
Viruses are non-cellular and do not produce antibiotics.
Step 4: Evaluating protozoans.
Protozoans are not known for antibiotic production.
Step 5: Evaluating cyanobacteria.
Cyanobacteria have limited antibiotic production compared to true bacteria.
Step 6: Final conclusion.
Therefore, antibiotics are mainly produced by bacteria.
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