MCQOPTIONS
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MCQOPTIONS
This section includes 107 Mcqs, each offering curated multiple-choice questions to sharpen your Microbiology knowledge and support exam preparation. Choose a topic below to get started.
| 51. |
The structure which contains the zygote nuclei in Rhizopus stolonifer is is known as _______________ |
| A. | progametangia |
| B. | zygospore |
| C. | suspensor cell |
| D. | coenozygote |
| Answer» E. | |
| 52. |
Legitimate copulation refers to ___________________ |
| A. | fusion between cells of same mating type |
| B. | fusion between cells of different mating type |
| C. | no fusion |
| D. | different sex cells are present within the same body |
| Answer» C. no fusion | |
| 53. |
Which of the following fungi causes severe epidemic of disease among fish in the natural environment? |
| A. | Saprolegnia ferax |
| B. | Saprolegnia parasitica |
| C. | Neurospora crassa |
| D. | Neurospora sitophila |
| Answer» C. Neurospora crassa | |
| 54. |
Which class of fungi among the following have motile cells with two laterally inserted flagella,one tinsel and the other whiplash? |
| A. | Chytridiomycetes |
| B. | Zygomycetes |
| C. | Deuteromycetes |
| D. | Oomycetes |
| Answer» E. | |
| 55. |
The Acrasiomycota differ from the Myxomycota |
| A. | in their mode of nutrition |
| B. | in their cellular organization |
| C. | Both (a) and (b) |
| D. | none of the above |
| Answer» C. Both (a) and (b) | |
| 56. |
Which of the following does not represent a human disease caused by fungi? |
| A. | Ringworm |
| B. | Cryptococcosis |
| C. | Malaria |
| D. | Jock itch |
| Answer» D. Jock itch | |
| 57. |
Ergotism is responsible for all of the following except |
| A. | hallucinations |
| B. | Irish potato famine |
| C. | both (a) and (b) |
| D. | gangrene |
| Answer» E. | |
| 58. |
Rhizopus stolonifer belongs to which class? |
| A. | Acrasiomycetes |
| B. | Zygomycetes |
| C. | Deuteromycetes |
| D. | Oomycetes |
| Answer» E. | |
| 59. |
In the life cycle of Rhizopus stolonifer,when the protoplasts and nuclei of both gametangia coalesce, the structure is known as ________________ |
| A. | progametangia |
| B. | coenozygote |
| C. | zygospore |
| D. | zygote |
| Answer» C. zygospore | |
| 60. |
__________ produce basidiospores. |
| A. | Slime molds |
| B. | Dimorphic fungi |
| C. | Club fungi |
| D. | Sac fungi |
| Answer» D. Sac fungi | |
| 61. |
Rhizopus produces clusters of rootlike holdfasts called _____________ |
| A. | stolons |
| B. | hyphae |
| C. | runners |
| D. | rhizoids |
| Answer» E. | |
| 62. |
Fungi in the division Deuteromycota are characterized by the fact that |
| A. | they only reproduce sexually |
| B. | they form sexual spores called deuterospores |
| C. | they are incapable of sexual reproduction |
| D. | a method of sexual reproduction has not been identified |
| Answer» E. | |
| 63. |
Fungi |
| A. | are photosynthetic |
| B. | are prokaryotic cells |
| C. | have cell walls of peptidoglycan |
| D. | secrete extracellular enzymes to breakdown nutrients |
| Answer» E. | |
| 64. |
Why are slime molds considered to resemble plants? |
| A. | They can photosynthesize |
| B. | They have cell walls composed largely of cellulose |
| C. | They form a threadlike structure |
| D. | They form structures that resemble leaves |
| Answer» C. They form a threadlike structure | |
| 65. |
Which of the following is not a member of the division Ascomycota? |
| A. | Aspergillus |
| B. | Claviceps |
| C. | Penicillium |
| D. | Rhizopus |
| Answer» E. | |
| 66. |
An organism in the Deuteromycota has all the following except |
| A. | asexual spores |
| B. | absorptive nutrition |
| C. | ascospores, basidiospores or zygospores |
| D. | a nucleus |
| Answer» D. a nucleus | |
| 67. |
There are one or more oospheres in each oogonium. |
| A. | True |
| B. | False |
| C. | May be |
| D. | Can't say |
| Answer» B. False | |
| 68. |
Aplanospores are ___________________ |
| A. | motile sporangiospores |
| B. | nonmotile sporangiospores |
| C. | oidia |
| D. | chlamydospores |
| Answer» C. oidia | |
| 69. |
Yeast play an important role in the alcohol industry, converting pyruvic acid into carbon dioxide and ethyl alcohol by the process of |
| A. | glycolysis |
| B. | respiration |
| C. | fermentation |
| D. | Krebs cycle |
| Answer» D. Krebs cycle | |
| 70. |
Ascospores located in asci are found in |
| A. | conidiocarps |
| B. | sorocarps |
| C. | ascocarps |
| D. | plasmodiocarps |
| Answer» D. plasmodiocarps | |
| 71. |
What do you mean by hypertrophy? |
| A. | repeated cell division |
| B. | infection by zoospore |
| C. | increase in cell volume |
| D. | decrease in cell volume |
| Answer» D. decrease in cell volume | |
| 72. |
Aspergillus niger is used in the production of _______________ |
| A. | cheese |
| B. | citric acid |
| C. | gluconic acid |
| D. | citric acid and gluconic acid |
| Answer» E. | |
| 73. |
Ecologically fungi are important because |
| A. | they act as decomposers and aid in nutrient cycling |
| B. | they are a major cause of plant diseases |
| C. | Both (a) and (b) |
| D. | none of the above |
| Answer» D. none of the above | |
| 74. |
Which among the following are asexual spores? |
| A. | Blastospores |
| B. | Ascospores |
| C. | Basidiospores |
| D. | Zygospores |
| Answer» B. Ascospores | |
| 75. |
Fungi are generally not |
| A. | multicellular |
| B. | containing cell walls |
| C. | photosynthetic |
| D. | spore-producing |
| Answer» D. spore-producing | |
| 76. |
Mycorrhizae are mutualistic associations between fungi and |
| A. | bacteria |
| B. | protozoa |
| C. | unicellular green algae |
| D. | vascular plants |
| Answer» E. | |
| 77. |
The crosswalls constrict which of the following parts and then grow inwards to form septum? |
| A. | hyphae |
| B. | lumen |
| C. | protoplasm |
| D. | plasmalemma |
| Answer» E. | |
| 78. |
Fungi are sensitive to which of the following antibiotics? |
| A. | penicillins |
| B. | tetracyclins |
| C. | chloramphenicol |
| D. | griseofulvin |
| Answer» E. | |
| 79. |
Mushrooms are classified in which of the following division? |
| A. | Ascomycota |
| B. | Basidiomycota |
| C. | Zygomycota |
| D. | Deuteromycota |
| Answer» C. Zygomycota | |
| 80. |
__________ produce motile sexual and asexual spores. |
| A. | Slime molds |
| B. | Dimorphic fungi |
| C. | Club fungi |
| D. | Water molds |
| Answer» E. | |
| 81. |
Yeasts may undergo |
| A. | alcoholic fermentation |
| B. | homolactic fermentation |
| C. | heterolactic fermentation |
| D. | all of these |
| Answer» E. | |
| 82. |
Spores formed by sexual reproduction on a club-shaped structure are _______________ |
| A. | Ascospores |
| B. | Zygospores |
| C. | Basidiospores |
| D. | Oospores |
| Answer» D. Oospores | |
| 83. |
The amount of chitin in the cell walls of the Plasmodium |
| A. | is greater than the water mold mycelium |
| B. | is lesser than the water mold mycelium |
| C. | is equal to the water mold mycelium |
| D. | none of the above |
| Answer» D. none of the above | |
| 84. |
The evolutionary record suggests that the first occurrence of multicellularity was in the kingdom |
| A. | Monera |
| B. | Protista |
| C. | Fungi |
| D. | Plantae |
| Answer» C. Fungi | |
| 85. |
Endocarditis is caused by which of the following fungi? |
| A. | Candida albicans |
| B. | Penicillium notatum |
| C. | Penicillium chrysogenum |
| D. | Agaricus campestris |
| Answer» B. Penicillium notatum | |
| 86. |
The common yeast Schizosaccharomyces follows which of the following asexual reproduction methods? |
| A. | binary fission |
| B. | budding |
| C. | fragmentation |
| D. | spore formation |
| Answer» B. budding | |
| 87. |
Cryptococcosis is a disease of ________________ |
| A. | bacterial infection |
| B. | parasitic infection |
| C. | viral infection |
| D. | mycotic infection |
| Answer» E. | |
| 88. |
The most significant reason why fungi are not in the kingdom Plantae is that fungi |
| A. | are chemoorganotrophic heterotrophs |
| B. | have unicellular and multi-cellular forms |
| C. | are prokaryotes |
| D. | are eukaryotes |
| Answer» B. have unicellular and multi-cellular forms | |
| 89. |
__________ produce ascospores in an ascus. |
| A. | Slime molds |
| B. | Dimorphic fungi |
| C. | Club fungi |
| D. | Sac fungi |
| Answer» E. | |
| 90. |
Zygomycetes have which type of mycelia? |
| A. | nonseptate |
| B. | septate with uninucleate |
| C. | septate with multi muclei |
| D. | white,nonseptate |
| Answer» E. | |
| 91. |
Name the asexual spore(s)? |
| A. | Conidia |
| B. | Sporangiospore |
| C. | Arthospores |
| D. | All of these |
| Answer» E. | |
| 92. |
The organism that starts out as amoeboid, phagocytic cells and converts to a sluglike pseudoplasmodium that migrates prior to development of a sorocarp belongs to which division? |
| A. | Ascomycota |
| B. | Chytridiomycota |
| C. | Myxomycota |
| D. | Oomycota |
| Answer» D. Oomycota | |
| 93. |
Reproductive organs are formed on the rhizoidal hyphae. |
| A. | True |
| B. | False |
| C. | May be |
| D. | Can't say |
| Answer» C. May be | |
| 94. |
Which of the following is/are the sexual spore? |
| A. | Ascospores |
| B. | Basidiospores |
| C. | Both (a) and (b) |
| D. | None of these |
| Answer» D. None of these | |
| 95. |
Water molds belong to which division? |
| A. | Ascomycota |
| B. | Basidiomycota |
| C. | Chytridiomycota |
| D. | Oomycota |
| Answer» E. | |
| 96. |
The optimum pH for the growth of fungi is ____________ |
| A. | 7.8-9.0 |
| B. | 12-14 |
| C. | 3.8-5.6 |
| D. | 1.0-2.0 |
| Answer» D. 1.0-2.0 | |
| 97. |
The fruiting body of a mushroom is called |
| A. | sorocarps |
| B. | basidiocarps |
| C. | ascocarps |
| D. | plasmodiocarps |
| Answer» C. ascocarps | |
| 98. |
Anaerobic degradation of proteins brought about by bacteria and fungi give the products like |
| A. | mercaptans and indole |
| B. | H2S |
| C. | both (a) and (b) |
| D. | None of these |
| Answer» D. None of these | |
| 99. |
Which among the following are spores formed by budding? |
| A. | Arthrospores |
| B. | Chlamydospores |
| C. | Blastospores |
| D. | Conidiospores |
| Answer» D. Conidiospores | |
| 100. |
Fungi are important in the production of all of the following commercial products except |
| A. | bread |
| B. | beer |
| C. | cheese |
| D. | rubber |
| Answer» E. | |