MCQs on Rhizopus

Rhizopus are saprophytic and parasitic fungi. They are commonly known as bread mould. They contain coenocytic hyphae. Rhizopus species are used to produce alcoholic beverages and chemicals. Some of the species are pathogenic to plants and animals.

1. The cell wall of most of the fungi contains

(a) hemicellulose

(b) chitin

(c) peptidoglycan

(d) cellolose

2. Absorptive heterotrophic mode of nutrition is present in

(a) Pteridophytes

(b) Bryophytes

(c) Fungi

(d) Algae

3. Zygospore formation is a characteristic feature of

(a) Mucour/ Rhizopus

(b) Puccinia

(c) Alternaria

(d) Penicillium

4. Asexual reproduction in Rhizopus is by the formation of

(a) zygospores

(b) motile zoospores

(c) sporangiospores

(d) zoogametes

5. Rhizopus is included in

(a) Zygomycetes

(b) Ascomycetes

(c) Deuteromycetes

(d) Chytridiomycetes

6. Common black bread mould is

(a) Rhizopus nedosus

(b) Rhizobium sp

(c) Rhizopus oryzae

(d) Rhizopus stolonifer

7. Sexual reproduction in Rhizopus takes place by fusion of

(a) two sporangia

(b) two gametangia

(c) two gametes

(d) two hyphae

8. Mycelium of Rhizopus is

(a) aseptate and multinucleate

(b) septate and multinucleate

(c) aseptate and uninucleate

(d) septate and coenycytic

9. Meiosis occurs in the life cycle of Rhizopus during

(a) asexual reproduction

(b) formation of gametangium

(c) germination of zygospores

(d) formation of sporangium

10. Asexual reproduction in Rhizopus is by the formation of

(a) chlamydospores

(b) aplanospores

(c) sporangiospores

(d) All of the above

Answer

1. (b)

2. (c)

3. (a)

4. (c)

5. (a)

6. (d)

7. (b)

8. (a)

9. (c)

10. (d)

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