Part 4 — Kingdom Fungi (Q76–Q100)
Part 4 — Kingdom Fungi (Q76–Q100)
25 MCQs on Zygomycota, Ascomycota, Basidiomycota, Deuteromycota, reproduction, symbiosis, industrial/medical importance.
Q76. Fungi are placed in a separate kingdom because they:
- A. Have chlorophyll
- B. Are absorptive heterotrophs with chitin walls
- C. Are prokaryotic
- D. Are multicellular autotrophs
Answer: B
- A: Incorrect — fungi lack chlorophyll.
- B: Correct — absorptive heterotrophs with chitin walls.
- C: Incorrect — fungi are eukaryotic.
- D: Incorrect — autotrophy is plant feature.
Q77. Zygomycota reproduce sexually by:
- A. Conjugation forming zygospore
- B. Ascospores
- C. Basidiospores
- D. Budding
Answer: A
- A: Correct — zygospores form by gametangial fusion.
- B: Incorrect — ascospores in Ascomycota.
- C: Incorrect — basidiospores in Basidiomycota.
- D: Incorrect — budding in yeasts.
Q78. Yeast reproduces asexually by:
- A. Binary fission
- B. Budding
- C. Fragmentation
- D. Spore formation
Answer: B
- A: Incorrect — binary fission is bacterial.
- B: Correct — budding in yeast.
- C: Incorrect — fragmentation in filamentous fungi.
- D: Incorrect — spore formation in others.
Q79. Ascomycota are called sac fungi because:
- A. Spores in basidia
- B. Spores in asci
- C. Spores in sporangia
- D. Budding
Answer: B
- A: Incorrect.
- B: Correct — spores form inside asci.
- C: Incorrect — sporangia in zygomycota.
- D: Incorrect.
Q80. Basidiomycota include:
- A. Bread mould
- B. Mushrooms and puffballs
- C. Yeast
- D. Penicillium
Answer: B
- A: Incorrect — Rhizopus is zygomycota.
- B: Correct — mushrooms, puffballs are basidiomycota.
- C: Incorrect — yeast is ascomycota.
- D: Incorrect — Penicillium is ascomycota.
Q81. Conidiospores are formed in:
- A. Ascomycota
- B. Zygomycota
- C. Basidiomycota
- D. All fungi
Answer: A
- A: Correct — conidia are asexual spores of ascomycota.
- B: Incorrect — zygospores/sporangiospores.
- C: Incorrect — basidiospores.
- D: Incorrect.
Q82. Imperfect fungi are so called because:
- A. Harmful
- B. Only asexual reproduction known
- C. Only sexual reproduction known
- D. Lack hyphae
Answer: B
- A: Incorrect.
- B: Correct — Deuteromycota lack known sexual stage.
- C: Incorrect.
- D: Incorrect.
Q83. Mycorrhiza is association of:
- A. Fungus + algae
- B. Fungus + roots of plants
- C. Fungus + bacteria
- D. Fungus + protozoa
Answer: B
- A: Incorrect — lichens are fungus + algae.
- B: Correct — fungus and roots form mycorrhiza.
- C: Incorrect.
- D: Incorrect.
Q84. The antibiotic penicillin is produced by:
- A. Aspergillus
- B. Penicillium
- C. Rhizopus
- D. Saccharomyces
Answer: B
- A: Incorrect.
- B: Correct — Penicillium notatum.
- C: Incorrect.
- D: Incorrect.
Q85. In fungi, the vegetative structure is:
- A. Thallus
- B. Hyphae and mycelium
- C. Stem and leaves
- D. Cilia
Answer: B
- A: Incorrect.
- B: Correct — vegetative body = hyphae forming mycelium.
- C: Incorrect — plants.
- D: Incorrect.
Q86. Dikaryotic stage (n+n) is characteristic of:
- A. Ascomycota and Basidiomycota
- B. Zygomycota
- C. Deuteromycota
- D. Myxomycetes
Answer: A
- A: Correct.
- B: Incorrect.
- C: Incorrect.
- D: Incorrect.
Q87. Rhizopus reproduces asexually by:
- A. Conidia
- B. Sporangiospores
- C. Basidiospores
- D. Zoospores
Answer: B
- A: Incorrect.
- B: Correct — sporangiospores in sporangia.
- C: Incorrect.
- D: Incorrect.
Q88. Yeast is important in industries because:
- A. Produces alcohol and enzymes
- B. Produces antibiotics
- C. Fixes nitrogen
- D. Causes rust diseases
Answer: A
- A: Correct — yeast ferments sugar into alcohol.
- B: Incorrect — antibiotics by Penicillium.
- C: Incorrect.
- D: Incorrect.
Q89. The rust of wheat is caused by:
- A. Puccinia
- B. Ustilago
- C. Rhizopus
- D. Penicillium
Answer: A
- A: Correct — Puccinia graminis.
- B: Incorrect — smut of corn.
- C: Incorrect.
- D: Incorrect.
Q90. Asexual reproduction in fungi commonly occurs by:
- A. Fragmentation, fission, budding
- B. Gamete fusion
- C. Dikaryotic stage
- D. Fertilization
Answer: A
- A: Correct.
- B: Incorrect.
- C: Incorrect.
- D: Incorrect.
Q91. Fungal cell wall is made up of:
- A. Cellulose
- B. Chitin
- C. Peptidoglycan
- D. Pectin
Answer: B
- A: Incorrect.
- B: Correct.
- C: Incorrect.
- D: Incorrect.
Q92. Smuts belong to:
- A. Ascomycota
- B. Basidiomycota
- C. Zygomycota
- D. Deuteromycota
Answer: B
- A: Incorrect.
- B: Correct.
- C: Incorrect.
- D: Incorrect.
Q93. Fungi obtain food by:
- A. Absorption
- B. Ingestion
- C. Photosynthesis
- D. Autotrophy
Answer: A
- A: Correct.
- B: Incorrect.
- C: Incorrect.
- D: Incorrect.
Q94. Which of the following fungi is edible?
- A. Agaricus (mushroom)
- B. Puccinia
- C. Ustilago
- D. Aspergillus
Answer: A
- A: Correct — Agaricus.
- B: Incorrect.
- C: Incorrect.
- D: Incorrect.
Q95. Aspergillus is used in production of:
- A. Citric acid
- B. Penicillin
- C. Ethanol
- D. Vitamin B12
Answer: A
- A: Correct — Aspergillus niger in citric acid.
- B: Incorrect.
- C: Incorrect.
- D: Incorrect.
Q96. Fungi showing sexual and asexual stages placed in:
- A. Ascomycota
- B. Basidiomycota
- C. Zygomycota
- D. Deuteromycota
Answer: D
- A: Incorrect.
- B: Incorrect.
- C: Incorrect.
- D: Correct — imperfect fungi.
Q97. Rhizopus is commonly known as:
- A. Bread mould
- B. Black rust
- C. Smut
- D. Yeast
Answer: A
- A: Correct.
- B: Incorrect.
- C: Incorrect.
- D: Incorrect.
Q98. Fungi are important decomposers because they:
- A. Fix nitrogen
- B. Break down organic matter
- C. Produce oxygen
- D. Absorb sunlight
Answer: B
- A: Incorrect.
- B: Correct.
- C: Incorrect.
- D: Incorrect.
Q99. In lichens, fungal component is usually:
- A. Ascomycota or Basidiomycota
- B. Zygomycota
- C. Deuteromycota
- D. Myxomycetes
Answer: A
- A: Correct.
- B: Incorrect.
- C: Incorrect.
- D: Incorrect.
Q100. Which fungal disease affects humans?
- A. Ringworm
- B. Rust of wheat
- C. Smut of corn
- D. Blast of rice
Answer: A
- A: Correct — ringworm.
- B: Incorrect.
- C: Incorrect.
- D: Incorrect. (more…)