Biological Classification Test

Result

Biological Classification Test - 46

Score
-
out of -
Rank
-
out of -

TIME Taken - -

SHARING IS CARING

If our Website helped you a little, then kindly spread our voice using Social Networks. Spread our word to your readers, friends, teachers, students & all those close ones who deserve to know what you know now.

Weekly Quiz Competition

Question 1
1 / -0

Which group includes moulds and yeast?

A
Rhodophytes

B
Bryophytes

C
Fungi

D
Ciliates

E
Flagellates

Solution

Fungi are eukaryotic, spore-bearing, achlorophyllous organisms that generally reproduce sexually and asexually. Fungi include numerous moulds which grow on the damp organic matter such as bread, leather, decaying vegetation, etc., unicellular yeasts found on the sugary surfaces of ripe fruits. Hence, option C is the correct answer.
Question 2
1 / -0

The oospore divides into two cells. The upper cell enlarges. It is called

A
Suspensor

B
Cotyledon

C
Embryonal

D
Protonema

Solution

Moss spores germinate to form an algae-like filamentous structure called the protonema. It represents the juvenile gametophyte. While the protonema is growing by apical cell division, at some stage, under the influence of the phytohormone cytokinin, buds are induced which grow by three-faced apical cells.
So, the correct option is option D.
Question 3
1 / -0

In most fungi, cell wall is chiefly made up of

A
Cellulose

B
Chitin

C
Protein

D
Lipid

Solution

Chitin is a polysaccharide. It is an important composition of cell wall of fungi. It is also present in the exoskeleton of the arthropods.
So, the correct answer is option B.
Question 4
1 / -0

Study the following lists.
List-I List-II
(A) Corynebacterium glutamicum (I) Flexibility in shape
(B) Halobacterium (II) Mineralisation
(C) Cristispira (III) Lysine
(D) Bacillus mycoides (IV) Gas vacuoles
(V) Parasite on bacteria
The correct match is

A
(A)- (V), (B)- (II), (C)- (III), (D)- (IV)

B
(A)- (III), (B)- (IV), (C)- (I), (D)- (II)

C
(A)- (II), (B)- (V), (C)- (IV), (D)- (I)

D
(A)- (IV), (B)- (I), (C)- (III), (D)- (V)

Solution

Corynebacterium glutamicum is a gram-positive soil bacterium. Through its metabolism, it synthesizes products such as serine, glutamate, and lysine - amino acids.
Many Halobacterium species possess proteinaceous organelles called gas vacuoles or gas vesicles.
Cristispira belongs to spirochete phylum of bacteria. They have a crest-like structure called crista. Their cells are flexible.
Bacillus mycoides is an ammonifying bacteria and can convert peptone (organic Nitrogen source into Ammonia). Thus, the correct answer is (B).
Question 5
1 / -0

The conditions for a virus to attack a host cell is

A
The virus must have the DNA or RNA key sequence to enter the host cell.

B
The virus must have the enzymes to cause the host cell to burst so that the host cell may be used as raw materials.

C
The virus must have the proper enzyme to puncture the membrane of the host cell.

D
The virus must have a particular shape that will match up with the proteins on the surface of the host cell.

E
The viral DNA or RNA must have sequence that is recognised by the ribosomes of the host cell.
Solution
- Viruses are organisms that survive in living hosts.
- These are actually biological agents that produce identical copies of its strain inside the host cell and leads to infections.
- Viruses are found in the environment and upon the presence of a host cell will try to attack.
- However, in order to attack, the virus must attach to a host cell which can be achieved when receptors on the viral envelope become connected to complementary receptor proteins of the target cells membrane.
- Thus, the correct answer is option D.
Question 6
1 / -0

Paramecia are members of the Kingdom

A
Fungi

B
Animalia

C
Archaea

D
Protista

E
Plantae

Solution

Paramecia are euakryotic, heterotrophic organism. Fungi include saprophytes while Paramecia are heterotrophs. Kingdom Animalia includes multicellular organisms. Archea includes prokaryotes. Kingdom protista includes eukaryotic unicellular organisms. Thus, the correct answer is option D.
Question 7
1 / -0

Lichens are sensitive to

A
$$S{O}_{2}$$ pollution.

B
Sewage pollution.

C
Noise pollution.

D
Radioactive pollution.

Solution

Lichens are compound organisms, that shows symbiotic relationship between fungus and photosynthetic organism (algae). It is varies in size, colors and forms. It appears as cranky patches or fluffy growth on rocks, trees and exposed ground. Lichens are very sensitive to SO$$_2$$ pollution in the air, therefore it can be represented as air pollution signals. This is because their productive consumption structure results in speedy aggregation of sulphur when resolved to high levels of sulphur dioxide pollution. One of the partner in lichens (photosynthetic organism) shows to be greater damaged by sulphur dioxide; and thereby causes photosynthesis to be inhibited and chlorophyll is destroyed.
So, the correct answer is option A.
Question 8
1 / -0

Which of the following statements is true for viruses?

A
Viruses multiply only in living host

B
Their crystals have a definte shape

C
Viruses grow and multiply by themselves outside the host

D
Viruses cannot be crystallized

Solution

The viruses are the obligate parasites and can multiply only in the body of the host organism. The machinery of the host is used for the production of the parts of the viral structures. There are different shapes of viruses which are used for the basis of classification. The viruses are acellular and cannot perform any life processes on its own. The viruses can be crystallized and the structure of the viruses can be studied.
Thus, the correct answer is option A.
Question 9
1 / -0

Bacteriophage viruses were added to a petri dish containing sterile agar growth medium. After a week, the dish was sampled and a number of viruses present was compared. What results would be expected?

A
The virus populations should be in exponential growth since there are ample food and no competition.

B
After a week, the viruses should be reaching carrying capacity and the population will be stabilizing.

C
After a week, the viruses should have already exhausted most of the resources in the closed petri dish and the population will be on the decline.

D
No new viruses will be present without the presence of host bacteria.

Solution

Virus require host cells to replicate. It cannot grow in a nutrient medium where host cells are absent, here, the bacteria, that are host to bacteriophages.
So, the correct answer is 'No new viruses will be present without the presence of host bacteria'
Question 10
1 / -0

What type of association is shown by lichens (an alga and fungus), in which the fungal component absorbs water and nutrients for both organisms, while the algal component manufacturers food for both organisms through photosynthesis?

A
Parasitism

B
Commensalism

C
Predation

D
Mutualism

E
Interspecific competition

Solution

Lichens are a small group of plant-like organisms, whose body is made up of algal and fungal components. Both algal and fungal partners are benefited from the association in which the fungal component absorbs water and nutrients for both the organisms, while the algal component manufactures food for both organisms through photosynthesis. Such a type of relationship is known as mutualism or symbiotic relationship.
So, the correct answer is option D.

User

Question Analysis

Correct -
Wrong -
Skipped -

My Perfomance

Score
-
out of -
Rank
-
out of -

Re-Attempt Weekly Quiz Competition

Biological Classification Test - 46

Result

Biological Classification Test - 46

Score

-

Rank

-

SHARING IS CARING

Question 1

Rhodophytes

Bryophytes

Fungi

Ciliates

Flagellates

Solution

Question 2

Suspensor

Cotyledon

Embryonal

Protonema

Solution

Question 3

Cellulose

Chitin

Protein

Lipid

Solution

Question 4

(A)- (V), (B)- (II), (C)- (III), (D)- (IV)

(A)- (III), (B)- (IV), (C)- (I), (D)- (II)

(A)- (II), (B)- (V), (C)- (IV), (D)- (I)

(A)- (IV), (B)- (I), (C)- (III), (D)- (V)

Solution

Question 5

The virus must have the DNA or RNA key sequence to enter the host cell.

The virus must have the enzymes to cause the host cell to burst so that the host cell may be used as raw materials.

The virus must have the proper enzyme to puncture the membrane of the host cell.

The virus must have a particular shape that will match up with the proteins on the surface of the host cell.

The viral DNA or RNA must have sequence that is recognised by the ribosomes of the host cell.

Solution

Question 6

Fungi

Animalia

Archaea

Protista

Plantae

Solution

Question 7

$$S{O}_{2}$$ pollution.

Sewage pollution.

Noise pollution.

Radioactive pollution.

Solution

Question 8

Viruses multiply only in living host

Their crystals have a definte shape

Viruses grow and multiply by themselves outside the host

Viruses cannot be crystallized

Solution

Question 9

The virus populations should be in exponential growth since there are ample food and no competition.

After a week, the viruses should be reaching carrying capacity and the population will be stabilizing.

After a week, the viruses should have already exhausted most of the resources in the closed petri dish and the population will be on the decline.

No new viruses will be present without the presence of host bacteria.

Solution

Question 10

Parasitism

Commensalism

Predation

Mutualism

Interspecific competition

Solution

User

Question Analysis

My Perfomance

Score

-

Rank

-

Results Announcement on: coming Monday