Biological Classification Test

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Biological Classification Test - 19

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Weekly Quiz Competition

Question 1
1 / -0

Methanogens do not produce:

A
oxygen

B
methane

C
hydrogen sulphide

D
carbon dioxide.

Solution

Methanogens produce methane, hydrogen sulphide and carbon dioxide by methanogenesis.
So, the correct option is 'oxygen'
Question 2
1 / -0

For growth, Viruses require

A
Minerals

B
Living host

C
Dead host

D
Simple Sugars

Solution

A virus is a small infectious agent that replicates only inside the "living cells" of other organisms. Viruses can infect all types of life forms, from animals and plants to microorganisms, including bacteria and archaea.
So, the correct option is B. ( Living host )
Question 3
1 / -0

Which one of the following is a bio-indicator of air pollution?

A
Fern

B
Lichen

C
Money Plant

D
Dodder

Solution

Lichens can be used as bioindicators of air pollution. They obtain most of their essential nutrients from the air in the surrounding environment instead of the soil as a result of which they accumulate the pollutants present in the air on the fungal threads. Lichens are most helpful in detecting sulfur dioxide pollution but can also be used in detecting radioactive elements and other toxic compounds.

So, the correct answer is 'lichen'.
Question 4
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Many fungi display the phenomenon of heterothallism. What exactly heterothallism?

A
Presence of different types of hyphae acting as male or female

B
Production of different kinds of spores

C
Presence of a net-like mycelium

D
Ability to produce both sexually as well as asexually

Solution

Heterothallic species have sexes that reside in different individuals. The term is applied particularly to Heterothallic fungi, which require two compatible partners ( or hyphae ) acting as male and female to produce sexual spores.
So, the correct option is A. (presence of different types of hyphae acting as male or female)
Question 5
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The five kingdom classification was proposed by -

A
R.H. Whittaker

B
C. Linnaeus

C
A. Roxberg

D
Virchow

Solution

$$\textbf{Correct option (A):}$$

$$\textbf{Explanation for correct option:}$$

$$\bullet$$ Robert Harding Whittaker proposed the five kingdom classification in 1969.

$$\bullet$$ The kingdoms defined by him were named: Monera, Protista, Fungi, Plantae and Animalia.

$$\bullet$$ The main criteria for classification used by him include cell structure, body organisation, Mode of nutrition, reproduction and phylogenetic relationships.

$$\bullet$$ Hence, the correct option is (A)
Question 6
1 / -0

Which one among the following is correct?

A
Gametes are invariably haploid

B
Spores are invariable haploid

C
Gametes are generally haploid

D
Both spores and gametes are invariably haploid

Solution

Gametes are invariably haploid cells as they are produced by meiosis. Spores are formed in lower plants by mitotic division and hence they can be diploid.
Hence correct option is 'Gametes are invariably haploid'
Question 7
1 / -0

Mycoplasma differs from virus in being sensitive to

A
Sugar

B
Tetracycline

C
Protein

D
Amino acid

Solution

Mycoplasma are sensitive to tetracycline and resistant to penicillin, because they lack cell wall.
Question 8
1 / -0

An example of iron oxidizing bacteria is

A
Beggiatoa

B
Geobacillus

C
Ferrobacillus

D
None of the above

Solution

Ferrobacillus oxidizes ferrous ion to ferric ion for producing energy.
Hence the correct option is C.
Question 9
1 / -0

Association in a lichen is _______.

A
Temporary

B
Parasitic

C
Permanent

D
Obligatory

Solution

Lichens are formed due to a kind of symbiotic relationship between fungi and cyanobacterium (blue-green algae). The relationship is obligatory in nature they produce their own food by photosynthesis (algal partner helps in this process) but also use the plant or other substance on which they grow as the substrate for other nutrients (fungal partner helps in this process of collection of moisture and nutrients). An obligatory relationship is one in which one or both the partners get benefits.
So, the correct answer is 'obligatory'.
Question 10
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The algal component of lichen is known as:

A
Phycobiont

B
Photobiont

C
Mycobiont

D
Both A and B

Solution

The algal component of a lichen is known as photobiont or phycobiont. The fungal component is known as mycobiont. Lichens are composite organisms that show the symbiotic association between algae and fungi.
So, the correct answer is 'Phycobiont and Photobiont'.

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Biological Classification Test - 19

Result

Biological Classification Test - 19

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SHARING IS CARING

Question 1

oxygen

methane

hydrogen sulphide

carbon dioxide.

Solution

Question 2

Minerals

Living host

Dead host

Simple Sugars

Solution

Question 3

Fern

Lichen

Money Plant

Dodder

Solution

Question 4

Presence of different types of hyphae acting as male or female

Production of different kinds of spores

Presence of a net-like mycelium

Ability to produce both sexually as well as asexually

Solution

Question 5

R.H. Whittaker

C. Linnaeus

A. Roxberg

Virchow

Solution

Question 6

Gametes are invariably haploid

Spores are invariable haploid

Gametes are generally haploid

Both spores and gametes are invariably haploid

Solution

Question 7

Sugar

Tetracycline

Protein

Amino acid

Solution

Question 8

Beggiatoa

Geobacillus

Ferrobacillus

None of the above

Solution

Question 9

Temporary

Parasitic

Permanent

Obligatory

Solution

Question 10

Phycobiont

Photobiont

Mycobiont

Both A and B

Solution

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