Free Biodiversity and Variety of Life MCQs with Answers
3,130 Biodiversity and Variety of Life MCQs from Biology, each with the correct answer and a written explanation of why it is correct. Free and unlimited, with no account needed.
Biological classification uses taxonomic ranks, binomial nomenclature and shared characteristics to organize life into kingdoms. The major groups include prokaryotes, protists, fungi, plants and animals, with comparisons based on cell type, cell wall, nutrition, body organization, reproduction and evolutionary relationships; prokaryotes lack a membrane-bound nucleus.
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- A. Zygomycota
- B. Basidiomycota
- C. Deuteromycota
- D. Ascomycots
Explanation: A. Non-septate, multinucleate.B. Hyphae are variable.C. Septate, lengthy dikaryotic phase but is sac-like fungi.
Correct answer: Basidiomycota- A. Karyogamy
- B. Plasmogamy
- C. Heterokaryotic
- D. Fragmentation
Explanation: A. Fusion of nuclei B. Fusion of protoplasts D. Breaking of mycelium of some hyphal fungi
Correct answer: Heterokaryotic- A. Ascospores
- B. Zygospores
- C. Asci
- D. Ascocarps
Explanation: A. Ascomycota produce haploid sexual spores known as ascospores C. Ascospores are produced inside the sac like structure called Asci D.
Correct answer: Zygospores- A. Asexual reproduction
- B. Unicellular
- C. They ferment carbohydrate to ethanol and carbon dioxide
- D. Sexual reproduction
Explanation: A. By buddingB. Microscopic fungiD. Reproduce by ascospores or basidiospores
Correct answer: They ferment carbohydrate to ethanol and carbon dioxide- A. Orange-yellow colored disease spots on their host surface
- B. Dusty spore masses that resemble soot
- C. Rust have fruiting bodies
- D. Puccinia species
Explanation: B. Produced by SmutsC. Visible mushrooms are formed entirely of dikaryotic myceliumD. Most common rust fungi
Correct answer: Orange-yellow colored disease spots on their host surface1486. Parasexuality is a special type of genetic recombination that is shown by which group of fungi?
- A. Penicillium
- B. Imperfect fungi
- C. Powdery mildews
- D. Spitting fungus
Explanation: A. No sexual phase is seenC. Reproduce by ascosporesD. Reproduce by zygospores
Correct answer: Imperfect fungi- A. Griseofulvin
- B. Cyclosporine
- C. Lovastatin
- D. Ergotin
Explanation: A. Used to inhibit fungal growthB. Used in organ transplantationD. Relieve one kind of headache migraine
Correct answer: Lovastatin- A. Yeast
- B. Penicillium
- C. Aspergillus
- D. Neurospora
Explanation: B. a type of anti biotic C. Produce soya sauce from soya bean D. Used for genetic research
Correct answer: Penicillium- A. Imperfect fungi
- B. Aspergillus fumigatus
- C. Purple ergot
- D. Soil contaminated with bird's feces
Explanation: B. Causes AspergillosisC. ErgotismD. Histoplasmosis
Correct answer: Imperfect fungi1490. Yeast are:
- A. Hyphal unicellular fungi
- B. Non-Hyphal unicellular fungi
- C. Hyphal multicellular fungi
- D. Non-Hyphal multicellular fungi
- E. All are incorrect
Explanation: Yeast are typically oval or spherical in shape and reproduce through budding, where a small outgrowth or bud forms on the parent cell and…
Correct answer: Non-Hyphal unicellular fungi1491. All fungi are:
- A. Have chlorophyll and are autotrophs
- B. Have chlorophyll and are heterotrophs
- C. Lack chlorophyll and are autotrophs
- D. lack chlorophyll and are heterotrophs
- E. Have chlorophyll and are saprophs
Explanation: the correct option is "lack chlorophyll and are heterotrophs." Fungi are heterotrophic organisms that obtain their nutrients by absorbing…
Correct answer: lack chlorophyll and are heterotrophs- A. Autotrophs
- B. Saprotrophs
- C. Parasites
- D. Predators
- E. Mutualists
Explanation: the correct option is "parasites." Parasitic fungi are organisms that obtain their nutrients by absorbing them directly from the living…
Correct answer: Parasites- A. Predators
- B. Obligate Parasites
- C. Oppurtunitistic Parasites
- D. Facultative Parasites
- E. Mutualists
Explanation: Therefore, the correct option is "facultative parasites" because they can grow and survive both as parasites on a host organism and…
Correct answer: Facultative Parasites- A. Fungi and Nematodes
- B. Fungi and Green Algae
- C. Fungi and roots of vascular plants
- D. Fungi and viruses
- E. Fungi and fungi
Explanation: The correct option is "Fungi and Green Algae." Lichens are composite organisms that result from a mutualistic relationship between a…
Correct answer: Fungi and Green Algae- A. Fungi and stems of non-vascular plants
- B. Fungi and stems of vascular plants
- C. Fungi and roots of non-vascular plants
- D. Fungi and roots of vascular plants
Explanation: The correct option is "Fungi and roots of vascular plants." Mycorrhizae are mutualistic associations between fungi and the roots of…
Correct answer: Fungi and roots of vascular plants- A. 2-3
- B. 2-5
- C. 5-7
- D. 2-9
- E. 6-9
Explanation: The correct option is "2-9." The pH range tolerable by fungi typically falls within the range of pH 2 to pH 9.
Correct answer: 2-9- A. Fragmentation
- B. Sedimentation
- C. Budding
- D. Fermentation
- E. Malformation
Explanation: The correct option is "fragmentation." Fragmentation refers to the process in which the mycelium of hyphal fungi breaks into fragments…
Correct answer: Fragmentation- A. Fusion of haploid nuclei and meiosis vary in different groups
- B. Plasmogamy followed by Karyogamy
- C. Karyogamy followed by Plasmogamy
- D. Karyogamy & Plasmogamy occur together
- E. None of the above
Explanation: In fungal sexual reproduction, plasmogamy refers to the fusion of the cytoplasm of two haploid fungal cells, which can be from the same…
Correct answer: Plasmogamy followed by Karyogamy- A. Shape
- B. Size
- C. Sexual reproduction
- D. Asexual reproduction
- E. Nutrition
Explanation: The correct basis for dividing fungi into different divisions or phyla is "sexual reproduction." Fungi are classified primarily based on…
Correct answer: Sexual reproduction- A. Basidiomycota
- B. Ascomycota
- C. Deutromycota
- D. Zygomycota
- E. None of the above
Explanation: Therefore, the correct option is "Zygomycota" because Mucor and Rhizopus belong to this phylum.
Correct answer: Zygomycota