Biological Classification Test

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Biological Classification Test - 58

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Weekly Quiz Competition

Question 1
1 / -0

A filament of Nostoc without its mucilage sheath is called

A
Mycelium

B
Trichome

C
Hypha

D
Colony

Solution

Nostoc is a genus of Blue-green algae or Cyanobacteria. It is prokaryotic organism. It is photosynthetic in nature. It also has ability to fix atmospheric nitrogen. It is found in both aquatic and terrestrial habitats. It is seen in gelatinous colonies which are composed of filaments surrounded by a thin mucilage sheath. The filament without its mucilage sheath is called as Trichome. Hence, trichome is an unbranched filament of the Nostoc.
Thus, the correct answer is 'Trichome.'
Question 2
1 / -0

Reproduction in Mucor takes place by

A
Isogametes

B
Anisogametes

C
Agametes

D
None of the above

Solution

Reproduction in Mucor takes place by isogametes. Mucor reproduce both in sexual and asexual method. While asexual reproduction takes place by the formation of spores, sexual reproduction takes place by conjugation of isogametes.
Question 3
1 / -0

Water collecting canals around the contractile vacuole are called _________.

A
Incurrent canals

B
Excurrent canals

C
Radiating canals

D
None of the above

Solution

Water collecting canals around the contractile vacuole are called Radiating canals The contractile vacuole is the part that contracts and forces extra water out of the cell. The radiating canals are the paths to the contractile vacuole. In Paramecium, these are two contractile vacuoles while one in Amoeba.
Question 4
1 / -0

Coenogametes occur in ____________.

A
Penicillium

B
Rhizopus

C
Puccinia

D
Ustilago

Solution

Each progametangium of Rhizopus undergoes division to form gametangium and suspensor. The two gametangia are in contact with each other. They contain multinucleated protoplasts that behave as aplanogamete or coenogamete. In Zygomycetes (conjugation fungi), the fusing gametes are multinucleate and are called as coenogametes.
Hence the correct option is B.
Question 5
1 / -0

In majority of lichens, there is association of ___________.

A
Green algae and ascomycetes.

B
Green algae and basidiomycetes.

C
Blue green algae and ascomycetes.

D
Blue green algae and basidiomycetes.

Solution

Lichens are a group of plants, formed by the association of algae and fungi. Most of the lichens consist of blue green algae and ascomycetes living in a symbiotic relationship.
Thus, the correct answer is option C.
Question 6
1 / -0

Common bread mould is

A
Aspergillus

B
Penicillium

C
Erysiphe

D
Rhizopus

Solution

Rhizopus stolonifer is commonly known as black bread mould. It is a member of Zygomycota and is considered the most important species in the genus Rhizopus.
Question 7
1 / -0

Conjugation fungi are ______________.

A
Oomycetes

B
Zygomycetes

C
Ascomycetes

D
Mushrooms

Solution

The Zygomycota, or conjugation fungi, include molds, such as those that invade breads and other food products.
Question 8
1 / -0

Soredium is a propagule of __________.

A
Lichens

B
Phycomycetes

C
Zygomycetes

D
Both axcomycetes and basidiomycetes
Solution
Soredia are common reproductive structures of lichens.
Soredia are powdery propagules composed of fungal hyphae wrapped around cyanobacteria or green algae.
These can be either scattered diffusely across the surface of the lichen's thallus, or produced in localized structures called soralia.
Question 9
1 / -0

A fungus which requires only one single host for completion of its life cycle is called

A
Heteroecious

B
Autoecious

C
Heterothallism

D
Heterosporous

Solution

Autoecious fungus is those fungus which completes its life cycle on single host only. Heterocious are those parasites which requires at least two hosts primary and secondary hosts. Heterothallic fungus is those fungus which requires two compatible partners to produce sexual spores. Dikaryotlc is the unique feature of some fungus where compatible cell types fuse together and thereby two nuclei of two cell pairs up and forms dikaryon.
Therefore, the correct answer is option B.
Question 10
1 / -0

Fungal spores produced asexually at tops or sides of hyphae are called __________.

A
Zoospores

B
Spores

C
Chlamydospores

D
Conidia

Solution

Fungal spores produced asexually at tops or sides of hyphae are called Conidia. The tips of these conidiophores fragment into hundred of tiny haploid spores called Conidia.

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Biological Classification Test - 58

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Biological Classification Test - 58

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SHARING IS CARING

Question 1

Mycelium

Trichome

Hypha

Colony

Solution

Question 2

Isogametes

Anisogametes

Agametes

None of the above

Solution

Question 3

Incurrent canals

Excurrent canals

Radiating canals

None of the above

Solution

Question 4

Penicillium

Rhizopus

Puccinia

Ustilago

Solution

Question 5

Green algae and ascomycetes.

Green algae and basidiomycetes.

Blue green algae and ascomycetes.

Blue green algae and basidiomycetes.

Solution

Question 6

Aspergillus

Penicillium

Erysiphe

Rhizopus

Solution

Question 7

Oomycetes

Zygomycetes

Ascomycetes

Mushrooms

Solution

Question 8

Lichens

Phycomycetes

Zygomycetes

Both axcomycetes and basidiomycetes

Solution

Question 9

Heteroecious

Autoecious

Heterothallism

Heterosporous

Solution

Question 10

Zoospores

Spores

Chlamydospores

Conidia

Solution

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