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. Glucose
- B. Glycogen
- C. Starch
- D. Protein
Explanation: Fungi store their food primarily as glycogen, which is similar to the storage mechanism in animals.
Correct answer: Glycogen- A. Parasitic fungi
- B. Facultative parasitic fungi
- C. Obligate parasitic fungi
- D. All of these
Explanation: Examples of obligate parasites are the downy mildews, the powdery mildews, and the rusts.
Correct answer: Obligate parasitic fungi- A. Deuteromycota
- B. Zygomycota
- C. Basidiomycota
- D. Ascomycota
Explanation: Yeast is a eukaryotic organism that is single-celled and is classified under the kingdom of fungi.
Correct answer: Ascomycota1544. Yeast reproduces by:
- A. Budding
- B. Sperm
- C. Fission
- D. Conidia
Explanation: Yeasts reproduce mainly by budding. Budding is an asexual way of reproduction in which a bump on the parent yeast grows, detaches, and…
Correct answer: Budding- A. Bacteria
- B. None of these
- C. Seaweeds
- D. Mushrooms
Explanation: Mushrooms do not have chlorophyll so they cannot photosynthesize. There are certain types of bacteria called photosynthetic bacteria that…
Correct answer: Mushrooms- A. Zygospore
- B. Spore
- C. Sporangia
- D. Hydra
Explanation: Zygospore: This option is the correct answer. In Rhizopus, the zygote undergoes sexual reproduction and forms a temporary, dormant…
Correct answer: Zygospore- A. Commensalism
- B. Parasitism
- C. Predation
- D. Symbiosis
Explanation: Option A is incorrect because Commensalism is relationship in which one organism is benefited other is neither benefited nor harm.Option B…
Correct answer: Symbiosis- A. Lovastatin
- B. Cyclosporin
- C. Ergotin
- D. Griseofulvin
Explanation: Option A is correct since Lovastatin is obtained from fungus and used for lowering blood cholesterol level.
Correct answer: Lovastatin- A. Cellulose
- B. Glycogen
- C. Starch
- D. Both B and C
Explanation: Option A is incorrect because Fungi do not store food in form of cellulose.Option B is correct since Fungi store surplus food usually as…
Correct answer: Glycogen- A. Prions
- B. Algae
- C. Bacteria
- D. Viruses
Explanation: Option A is incorrect because Prions are infectious proteins that cause infection in humans and cows.
Correct answer: Bacteria- A. Sarcomeres
- B. Candidia
- C. Lovastatin
- D. Aspergillus
Explanation: Excess growth of Candida fungus in the mouth causes a condition known as "Oral thrush" or "Oral Candidiasis".
Correct answer: Candidia- A. Fungi and algae
- B. Alage and root
- C. Fungi and lichen
- D. Fungi and root
Explanation: Mycorrhizae is a mutual symbiotic association between a fungus and a plant.
Correct answer: Fungi and root- A. Saccharomyces
- B. Armillaria
- C. Trichonympha
- D. Balantidium
Explanation: Alcoholic fermentation occurs in yeast and plants. Alcoholic fermentation is the sole mean of respiration in Saccharomyces cerevisiae…
Correct answer: Saccharomyces- A. Ascocarp
- B. Basidiocarp
- C. Zygocarp
- D. Pseudocarp
Explanation: The fruiting body of ascomycetes is called ascocarp. As Morchella esculenta is an edible fungus from class Ascomycota, its ascocarp part…
Correct answer: Ascocarp- A. Plants
- B. Animals
- C. Fungi
- D. Monera
Explanation: Fungi are unique in that their mitosis occurs within an intact nuclear envelope, a process known as nuclear mitosis.
Correct answer: Fungi- A. Bacteria
- B. Algae
- C. Other fungus
- D. Animals
Explanation: Symbiosis: Fungi develop symbiotic associations with other organisms e.g.
Correct answer: Algae1557. Mushrooms belong to:
- A. Zygomycota
- B. Ascomycota
- C. Basidiomycota
- D. Deuteromycota
Explanation: Mushrooms belong to the phylum basidiomycota as they have a stem (stipe), a cap (pileus), and gills (lamella) on the underside of the cap…
Correct answer: Basidiomycota- A. Option A
- B. Option B
- C. Option C
- D. Option D
Explanation: Lipases have broad industrial uses (food, detergents, pharmaceuticals, cosmetics). The option given in (b) mismatched its function.
Correct answer: Option A- A. Diplontic life cycle
- B. Members of kingdom-Plantae
- C. Mode of nutrition
- D. Multiplication by fragmentation
Explanation: All three-multicellular fungi, filamentous algae, and protonema of mosses-share a common mode of nutrition, which is absorption.
Correct answer: Mode of nutrition- A. Polytrichum
- B. Ustilago
- C. Wheat
- D. Funaria
Explanation: (d) : Funaria exhibits gametophytic (n) as well as sporophytic (2n) generation in its life cycle.
Correct answer: Funaria