Biological Classification Test

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Biological Classification Test - 74

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Weekly Quiz Competition

Question 1
1 / -0

Peritrichous bacteria have ________.

A
Flagella all over the body

B
Tuft of flagella at one end

C
Tuft of flagella at both ends

D
Single flagellum at one end

Solution

A. Flagella all over the body
Solution : There are four types of flagellar arrangements based on the number and placement of flagella on the cell. Multiple flagella randomly distributed all over the body of the bacterial cell is called peritrichous bacteria. It is self-propel in fluids by using specialized motors to rotate multiple helical filaments. The rotation of each motor is transmitted to a short flexible segment called the hook which in turn transmits it to a flagellar filament, enabling swimming of the whole cell.
So, the correct answer is option A.
Question 2
1 / -0

Fungi show sexual reproduction by all of the following processes except

A
Oospores

B
Ascospores

C
Basidiospores

D
Aplanospores

Solution

Oospores, Ascospores and Basidiospores are all sexual spores and are involved in sexual reproduction in fungi. Aplanospores is endogenously produced asexual spore which is non-motile. Conidia and oidia are exogenously produced asexual spores.
Question 3
1 / -0

Select the correct option with respect to the fungi forms the fruiting body in which reduction division occurs.

A
Agaricus, Aspergillus and Alternaria

B
Peziza, Saprolegnia and Trichoderma

C
Penicillium, Agaricus and Claviceps

D
Claviceps, Mucor and Rhizopus
Solution
- The fruiting bodies of fungi contain spores which are dispersed for reproduction.
- It is the binucleate mycelium that eventually forms the basidia- the stalked fruiting bodies in which nuclear fusion and meiosis take place prior to the formation of the basidiospore.
- Fungi usually reproduce both asexually and asexually.
So, the correct option is 'Agaricus, Aspergillus, and Alternaria'.
Question 4
1 / -0

Methanogens are _______________.

A
Obligate anaerobes

B
Found in salline marshes

C
$$CO_2$$ oxidizing forms

D
Facultative anaerobes

Solution

Methane-producing methanogens are called obligate anaerobes. Their energy-generating metabolic processes are not coupled with the consumption of oxygen. Anaerobes are bacteria that can grow in both the presence or absence of oxygen.
So, the correct answer is option A.
Question 5
1 / -0

Plant group more sensitive to the levels of sulphur dioxide in air is?

A
Thallophyta

B
Lichen

C
Pteridophyta

D
Gymnosperm

Solution

Lichens are more sensitive to the levels of sulphur dioxide in air.
Question 6
1 / -0

Which of the following is not a true fish ?

A
Silverfish

B
Sea horse

C
Flying fish

D
Eel

Solution

Silverfish is an insect.
So the correct answer is silver fish.
Question 7
1 / -0

Rhodopseudomonas and Rhodospirillum are ______________.

A
Purple non-sulphur bacteria

B
Green non-sulphur bacteria

C
Green sulphur bacteria

D
Purple sulphur bacteria
Question 8
1 / -0

Obligate anaerobic archaebacteria with chemoautotrophic mode of nutrition are ____________.

A
Methanogens

B
Halophiles

C
Thermoacidophiles

D
More than one option is correct
Question 9
1 / -0

Animals do not show diversity in ______.

A
Volume

B
Life style

C
Shape

D
Cell

Solution

The animal kingdom is incredibly diverse, most animals limits on animal size and shape and lifestyle.
So, the correct option is 'Volume'.
Question 10
1 / -0

Select the correct statements among the following (i-iv) regarding the characteristics of certain organisms.
(i) Methanogens are archaebacteria which produce methane in marshy areas.
(ii) Nostoc is a filamentous blue-green alga which fixes atmospheric nitrogen.
(iii) Chemosynthetic autotrophic bacteria synthesize cellulose from glucose.
(iv) Mycoplasma lack a cell wall and can survive without oxygen.

A
(ii) and (iii)

B
(i) and (ii)

C
(ii) (iii) and (iii)

D
(i) (ii) and (iv)

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Re-Attempt Weekly Quiz Competition

Biological Classification Test - 74

Result

Biological Classification Test - 74

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SHARING IS CARING

Question 1

Flagella all over the body

Tuft of flagella at one end

Tuft of flagella at both ends

Single flagellum at one end

Solution

Question 2

Oospores

Ascospores

Basidiospores

Aplanospores

Solution

Question 3

Agaricus, Aspergillus and Alternaria

Peziza, Saprolegnia and Trichoderma

Penicillium, Agaricus and Claviceps

Claviceps, Mucor and Rhizopus

Solution

Question 4

Obligate anaerobes

Found in salline marshes

$$CO_2$$ oxidizing forms

Facultative anaerobes

Solution

Question 5

Thallophyta

Lichen

Pteridophyta

Gymnosperm

Solution

Question 6

Silverfish

Sea horse

Flying fish

Eel

Solution

Question 7

Purple non-sulphur bacteria

Green non-sulphur bacteria

Green sulphur bacteria

Purple sulphur bacteria

Question 8

Methanogens

Halophiles

Thermoacidophiles

More than one option is correct

Question 9

Volume

Life style

Shape

Cell

Solution

Question 10

(ii) and (iii)

(i) and (ii)

(ii) (iii) and (iii)

(i) (ii) and (iv)

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