- A Bacterium Bacillus
- B Fungus Penicillium
- C Red alga Gracilaria
- D Cyanobacterium Nostoc
Correct answer: B. Fungus Penicillium
Explanation: Penicillin is produced by the fungus Penicillium notatum (now P. chrysogenum). Alexander Fleming discovered it in 1928. It is a beta-lactam antibiotic that inhibits bacterial cell wall synthesis.
Concept context
Classification of plants from algae to angiosperms. Understanding plant diversity is essential for NEET.