Mycology MCQs (Quiz 4) Posted on June 16, 2026Author agropublishers 0 1. Which biogeochemical cycle is significantly influenced by fungal decomposition? All of these Carbon cycle Phosphorus cycle Nitrogen cycle 2. Which of the following groups is a eukaryotic organism? Cyanobacterium Virus Fungus Bacterium 3. Bread mold commonly belongs to the genus _______ Aspergillus Saccharomyces Rhizopus Penicillium 4. Penicillin, the world’s first true antibiotic, is produced naturally by species within the fungal genus ______________ Penicillium Aspergillus Rhizopus Mucor 5. Yeast reproduces asexually mainly by _______ Binary fission Fragmentation Budding Spore formation 6. The breakdown of dead organic matter in ecosystems is mainly performed by _______ Viruses Animals Plants Fungi 7. The fungus used in bread and alcohol production is _______ Saccharomyces cerevisiae Rhizopus nigricans Aspergillus flavus Penicillium chrysogenum 8. The scientific study of mushrooms is known as _______ Phycology Mycology Bryology Lichenology 9. Rust disease of wheat is caused by _______ Fusarium oxysporum Claviceps purpurea Alternaria solani Puccinia graminis 10. Aflatoxins are highly toxic and carcinogenic mycotoxins produced primarily by the toxigenic strains of the fungi _____________ Saccharomyces cerevisiae Rhizopus stolonifer Aspergillus flavus Puccinia graminis Loading … Question 1 of 10