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NCERT · Class 8 · Science · Microorganisms: Friend and FoeThe first antibiotic discovered by Alexander Fleming was:

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Step-by-Step Solution

Penicillin was the first antibiotic discovered by Alexander Fleming in 1928 from the fungus Penicillium notatum.

Detailed Options Breakdown
Option : Streptomycin

Incorrect choice. This distractor represents a common misunderstanding of the core principles of Microorganisms: Friend and Foe.

Option 1: Tetracycline

Incorrect choice. This distractor represents a common misunderstanding of the core principles of Microorganisms: Friend and Foe.

Option 2: Erythromycin

Incorrect choice. This distractor represents a common misunderstanding of the core principles of Microorganisms: Friend and Foe.

Option 3: Penicillin (Correct Answer)

Correct choice. Refer to the step-by-step verified solution guidelines above for details.

💡 Study Guide: This question tests core syllabus concepts from Microorganisms: Friend and Foe. For formulas, key summaries, and mock exam reference guides, read the full Microorganisms: Friend and Foe Revision Notes.
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