Quiz_Fungi 1. The mycelium of Rhizopus is: Aseptate and multinucleate Aseptate and binucleate None of the above Septate and nucleate Explanation:The mycelium of Rhizopus is characterized by being aseptate (lacking cross-walls) and multinucleate, allowing for extensive growth. 2. Rhizopus, which is saprophytic by nature, is also known as: Smut Rust Pond silk Bread mould Explanation:Rhizopus is commonly referred to as bread mould because it frequently grows on bread and other starchy foods. 3. Saccharomyces is used in: Bakery and wine industry Tanning of leather Preservation of leather Pasteurization of milk Explanation:Saccharomyces, a genus of yeast, is extensively used in the bakery and wine industries for fermentation processes. 4. Where does meiosis occur in yeast? In ascogonium In ascospore None of the above In ascus mother cell Explanation:In yeast, meiosis occurs in the ascus mother cell, leading to the formation of haploid ascospores within the ascus. 5. Metulae are found in: Aspergillus Penicillium Saccharomyces Agaricus Explanation:Metulae are secondary branches in the conidiophores of Penicillium, which bear chains of conidia (asexual spores). 6. Severe famine of West Bengal of 1942-43 was due to destruction of rice crop by a fungus called: Helminthosporium Penicillium Puccinia Rhizopus Explanation:The severe famine in West Bengal during 1942-43 was caused by the destruction of rice crops by the fungus Helminthosporium oryzae, leading to widespread food shortages. 7. The ascus of yeast contains: 2 ascospores 10 ascospores 1 ascospore 4 or 8 ascospores Explanation:The ascus of yeast typically contains 4 or 8 ascospores, depending on the species and environmental conditions. 8. Zygospores may not be produced in Rhizopus due to: Absence of light Deficiency of O2 Presence of hyphae of + and – strains Absence of hyphae of + and – strains Explanation:Zygospores in Rhizopus are formed through sexual reproduction, which requires the presence of both + and – strains of hyphae. 9. The fungi that grow on wood are called: Eucarpic Epibiotic Epigeon Epixylic Explanation:Epixylic fungi are those that grow on wood, decomposing it and playing a crucial role in nutrient cycling in forest ecosystems. 10. Discovery of penicillin was based on: Struggle for existence Biological antagonism None of the above Struggle for genotype Explanation:The discovery of penicillin by Alexander Fleming was based on the principle of biological antagonism, where Penicillium mold inhibited bacterial growth. Loading …
