Free Kingdom Fungi MCQs with Answers

31. The smallest fungal group is:

• A. Basidiomycota
• B. Ascomycota
• C. Zygomycota
• D. Deutromycota

Explanation: The correct option is "Zygomycota." Zygomycota is a relatively small fungal group that includes fungi like bread molds (e.g., Rhizopus) and other related species. They are characterized by the formation of resistant structures called zygosporangia during sexual reproduction. While Zygomycota is smaller in terms of species diversity compared to Basidiomycota and Ascomycota, it is still a significant fungal group with important ecological roles and economic impacts.

32. Asexual reproduction in "Ascomycota" takes place by

• A. Spores
• B. Conidia
• C. Fragmentation
• D. Fission

Explanation: Conidia, on the other hand, are asexual spores produced by Ascomycota fungi. They are formed at the tips or sides of specialized hyphae called conidiophores and are easily dispersed to initiate new fungal growth. Conidia are a key mechanism of asexual reproduction in Ascomycota fungi.

33. Yeast is an example of phyla:

• A. Basidiomycota
• B. Ascomycota
• C. Deuteromycota
• D. Zygomycota

Explanation: The correct option is "Ascomycota" because yeast is a member of this phylum. Ascomycota is a diverse phylum that includes various fungi, including yeast species, which reproduce through the formation of sac-like structures called asci.

34. Yeast which causes common vaginal infection and thrush is:

• A. Crytococcus neofarmans
• B. Histoplasma capsulatum
• C. Coccidides immitis
• D. Candida albicans
• E. Mucor and rhizopus

Explanation: The correct option is "Candida Albicans" as it is the most common yeast species responsible for causing vaginal infections and thrush in humans

35. Fungi imperfect includes:

• A. Mucor and Rhizopus
• B. Candida and Histoplasma
• C. Coccidioides and Cryptococcus
• D. Aspergillus and Penicillium
• E. Rhizopus and Penicillium

Explanation: The correct option is "Aspergillus & Penicillium." Fungi imperfecti, also known as Deuteromycetes or anamorphic fungi, is a group that includes fungi with no known sexual stage or with poorly understood reproductive processes. Aspergillus and Penicillium are examples of fungi that fall under this category.

36. Mushroom belongs to:

• A. Zygomycota
• B. Ascomycota
• C. Basidiomycota
• D. Deuteromycota
• E. Fungi Imperfect

Explanation: The correct option is "Basidiomycota" because mushrooms are primarily associated with this phylum. Basidiomycota fungi are known for their characteristic fruiting bodies, which include mushrooms. These mushrooms are the reproductive structures of Basidiomycota fungi, where spores are produced and dispersed for reproduction.

37. Carcinogenic mycotoxins are produced by some strains of:

• A. Mucor
• B. Rhizopus
• C. Candida albicans
• D. Penicillium
• E. A.fumigatus Flavus

Explanation: Aspergillus flavus is a fungus known for producing aflatoxins, which are potent carcinogenic mycotoxins. Aflatoxins are produced by certain strains of A. flavus during the infection of crops such as peanuts, corn, and tree nuts.

38. Poisonous mushrooms are popularly called?

• A. Danger stools
• B. Toad stools
• C. Break stools
• D. Dark stools
• E. Fear stools

Explanation: "The correct option is "toad-stools" because it is the popular term used to refer to poisonous mushrooms. The term likely originates from the association of toads with mushrooms, as some toads are known to have toxic skin secretions and are often depicted sitting on or near mushrooms in folklore and illustrations."

39. Characteristic mitosis present in fungi is "nuclear-mitosis" during which:

• A. Nuclear membrane break, spindle is formed outside nucleus
• B. Nuclear membrane break, spindle is formed within nucleus
• C. The nuclear membrane doesn't break, spindle is formed outside the nucleus
• D. Nuclear membrane doesn't break, spindle is formed within nucleus

Explanation: "In fungi, including both yeasts and filamentous fungi, the characteristic mitosis is referred to as "closed mitosis" or "nuclear mitosis." During nuclear mitosis, the nuclear envelope or membrane remains intact, and the spindle apparatus forms within the nucleus. ".

40. The opening of ascocarp is called:

• A. Apothecium
• B. Cleistothecium
• C. Perithecium
• D. Parathecium
• E. Epithecium

Explanation: Perithecium refers to the opening of the ascocarp in ascomycete fungi. The ascocarp is a specialized reproductive structure that contains the asci, which are sac-like structures that produce and release the sexual spores called ascospores. The perithecium is a flask-shaped or globular structure with a small opening called an ostiole, through which the ascospores are released.