Biological Classification
Test 5

Correct answer Carries: 4.

Wrong Answer Carries: -1.

Which of the following statements about fungi is incorrect?

They are heterotrophic
They reproduce both sexually and asexually
Their cell wall is made of cellulose
They can be unicellular or multicellular
3

The fungal cell wall is composed of chitin, not cellulose, which is found in plants.

Which of the following is a key feature of viral reproduction?

Independent replication using ribosomes
Use of host cell machinery for replication
Binary fission in the absence of a host
Mitosis within the viral particle
2

Viruses rely on the host cell’s machinery, such as ribosomes and enzymes, to replicate their genetic material and produce new viral particles, as they lack their own metabolic machinery.

Which of the following is a key feature of viral reproduction?

Independent replication using ribosomes
Use of host cell machinery for replication
Binary fission in the absence of a host
Mitosis within the viral particle
2

Viruses rely on the host cell’s machinery, such as ribosomes and enzymes, to replicate their genetic material and produce new viral particles, as they lack their own metabolic machinery.

Which of the following statements about Kingdom Monera is correct?

Monerans include only autotrophic organisms.
Monerans have a circular DNA molecule.
Monerans have membrane-bound organelles.
Monerans reproduce mainly by mitosis.
2

Monerans have a circular DNA molecule that is not enclosed within a nuclear membrane.

Which of the following statements is true about cyanobacteria?

They are eukaryotic
They perform nitrogen fixation
They are heterotrophic
They lack a cell wall
2

Cyanobacteria, also called blue-green algae, are capable of nitrogen fixation in specialized cells called heterocysts.

Which of the following is a characteristic feature of Kingdom Protista?

Presence of a well-defined nucleus
Always multicellular
Lack of membrane-bound organelles
Prokaryotic nature
1

Kingdom Protista consists of eukaryotic organisms that have a well-defined nucleus and membrane-bound organelles.

Which of the following organisms is an example of a flagellated protozoan?

Amoeba
Paramecium
Trypanosoma
Plasmodium
3

Trypanosoma is a flagellated protozoan that causes sleeping sickness.

Which of the following is NOT a characteristic of viruses?

They are acellular
They can reproduce outside a host
They contain either DNA or RNA
They are obligate intracellular parasites
2

Viruses cannot reproduce outside a host; they require a living cell to replicate.

Which of the following organisms is considered a link between plants and animals?

Euglena
Paramecium
Amoeba
Spirogyra
1

Euglena exhibits both autotrophic (photosynthesis) and heterotrophic modes of nutrition, making it a link between plants and animals.

Which of the following correctly describes the mode of nutrition in fungi?

Only autotrophic
Only parasitic
Saprophytic and heterotrophic
Only photosynthetic
3

Fungi obtain nutrients through saprophytic (decomposing organic matter) and heterotrophic modes of nutrition.

Performance Summary

Score:

Category Details
Total Attempts:
Total Skipped:
Total Wrong Answers:
Total Correct Answers:
Time Taken:
Average Time Taken per Question:
Accuracy:
0