Free Biodiversity and Variety of Life MCQs with Answers

1471. What is the contrasting feature based on which fungi are considered different from animals?

• A. Lack cellulose in their cell wall
• B. Heterotrophs
• C. Contains chitin
• D. Non Motile

Explanation: A. animal like property, both lack cellulose. B. Do not synthesize their own food they are heterotrophs C. Like arthropods

1472. The body of the fungus is called:

• A. Mycelium
• B. Hyphae
• C. Septate hyphae
• D. Coenocytic

Explanation: B. Thread like filaments C. Divided by cross walls called septa D. septate hyphae with elongated multinucleates large cell

1473. All fungi lack chlorophyll and based on their mode of nutrition, they include all these groups except:

• A. Absorptive heterotrophs
• B. Saprotrophs
• C. Decomposers
• D. Autotrophs

Explanation: A. Direct absorption from environment B. feeding on dead organic matter. C. feeding on dead organisms and matter.

1474. What are the major decomposers of the biosphere contributing to the recycling of the elements used by living things?

• A. Saprobic fungi and bacteria
• B. Plants
• C. Animals
• D. Algae

Explanation: B. AutotrophsC. HeterotrophsD. Photosynthetic protists

1475. Parasitic fungi absorb nutrients directly from the living host cytoplasm with the help of hyphal tips called:

• A. Rhizoids
• B. Constricting ring
• C. Haustoria
• D. Hyphae

Explanation: A. thin filamentous modified hyphae B. used to capture nematodes D. Thread like filaments

1476. Which one of these is a predatory fungus?

• A. Pleurotus ostreatus
• B. Mildews
• C. Armillaria
• D. Yeast

Explanation: B. Obligate parasiteC. Parasitic fungusD. Non hyphal unicellular fungi

1477. A symbiotic association between certain fungi and certain photoautotrophs either green algae or a cyanobacterium or sometimes both are termed as:

• A. Mycorrhizae
• B. Lichens
• C. Endomycorrhizae
• D. Ectomycorrhizae

Explanation: A. Association between fungi and roots of plantsC. Fungal hyphae penetrate the outer cells of plant rootD. Hyphae surround and extend between the cells but do not penetrate the cell wall of roots

1478. What are the important features that fungi have that help them in their survival on land?

• A. Tolerate wide range of pH
• B. Tolerate temperature
• C. Tolerate high osmotic pressure
• D. All of the above

Explanation: A. 2-9 B. Wide range upto 70 degrees C. can survive in conc. salt/sugar solutions E.g jam, jelly

1479. In fungi, asexual reproduction occurs by all these methods except which one?

• A. Spores
• B. Conidia
• C. Binary fission
• D. Budding

Explanation: Correct Option: C Binary fission is a method of Asexual reproduction in bacteria, not Fungi. A. Produced in sporangia B. Cut off at the end of modified hyphae conidiophore D. Asymmetric division as in yeast

1480. Fungi are classified in several groups which is one of the following groups that does not show sexual reproduction

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

Explanation: A. Sexual reproduction by ZygosporesB. Sexual reproduction by AscosporesC. Sexual reproduction by Basidiospores