Consider statements about microorganisms: 1. Penicillin is extracted from a fungus. 2. Streptomycin is extracted from a bacterium. 3. Viruses can be cultured in synthetic media. Which are correct? MCQ with Answer and Explanation

Penicillin, the first antibiotic, is extracted from the fungus Penicillium notatum. Streptomycin is an antibiotic derived from the actinomycete bacterium Streptomyces griseus. Viruses are obligate intracellular parasites and cannot be grown or cultured on artificial synthetic media; they require living host cells (like embryonated eggs or cell cultures) to replicate. Thus, statements 1 and 2 are correct.