Biological Classification Mock Tests

31 questions available

Biological Classification Mock Test 1

Questions: 30

Biological Classification Mock Test 2

Questions: 1

Sample Questions

Class 11 Biology

Cyanobacteria are also known as:

A Blue-green algae

B Diatoms

C Dinoflagellates

D Slime moulds

Class 11 Biology

Lichens serve as bioindicators of pollution. Which type of lichen is absent in highly polluted areas?

A Crustose lichens

B Foliose lichens

C Lecthin lichens

D All types are equally present

Class 11 Biology

In the five-kingdom classification system proposed by R.H. Whittaker, which criterion was NOT used as one of the primary bases for classification?

A Body organization (prokaryotic vs. eukaryotic)

B Mode of nutrition (autotrophic vs. heterotrophic)

C Reproduction (sexual vs. asexual only)

D Phylogenetic relationships

Class 11 Biology

Cyanobacteria are incorrectly matched with which feature below?

A Vegetative cells are surrounded by a blue-green color due to phycocyanin

B All cyanobacteria are multicellular and exclusively terrestrial

C Vegetative cells cannot tolerate desiccation but can endure extreme temperatures

D Bloom in nutrient-rich waters causes mass death of aquatic organisms

Class 11 Biology

Which of the following nucleic acids serves as the genetic material in HIV (Human Immunodeficiency Virus)?

A Double-stranded DNA

B Single-stranded DNA

C Double-stranded RNA

D Single-stranded RNA

Class 11 Biology

Which of the following algae is known to produce a potent neurotoxin responsible for paralytic shellfish poisoning?

A Dinoflagellates (e.g., Gonyaulax)

B Chlamydomonas

C Ulva (Sea lettuce)

D Sargassum

Class 11 Biology

Which of the following is a distinguishing feature of viroids compared to viruses?

A Viroids consist of free RNA without a protein capsid

B Viroids contain DNA as genetic material

C Viroids are larger than most viruses

D Viroids can reproduce independently outside host cells

Class 11 Biology

In the five-kingdom classification, which kingdom includes organisms that possess heterotrophic mode of nutrition, multicellular body organisation and cell walls made of chitin?

A Plantae

B Fungi

C Protista

D Animalia

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