Biological Classification - NCERT Based MCQs for NEET

This article contains NCERT based 45 MCQ questions test on Biology chapter "Biological Classification". These questions are highly valuable for the NEET exam. You can attempt these questions in the form of an interactive quiz and calculate your score. Read the below quiz rules carefully before you start

General Instructions

• Quiz contains 45 questions of 4 marks each.
• Correct answer (✔) will award you +4 marks and Incorrect answer (✘) will give you -1 mark.
• Total test is of 180 marks.
• Tap on box in order to select any option that you think is correct.
• Press the Submit button given in the end of quiz to calculate your score.
• There is a PDF file attached in the end of quiz. You can see detailed solutions to all questions and do self analysis from that file as well. 

Question 1. Protists are alike in that all are

(1) unicellular 

(2) eukaryotic

(3) symbionts 

(4) monophyletic

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Question 2. Which of these taxa contains species that produce potent toxins that can cause extensive fish kills, contaminate shellfish, and poison humans?

(1) red algae 

(2) dinoflagellates

(3) diplomonads 

(4) euglenids

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Question 3. A certain unicellular eukaryote has a siliceous (glasslike) shell and autotrophic nutrition. To which group does it belong?

(1) dinoflagellates 

(2) diatoms

(3) brown algae 

(4) radiolarians

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Question 4. Which of these statements about dinoflagellates is false?

(1) They possess two flagella.

(2) Some cause red tides.

(3) Their walls are composed of cellulose plates.

(4) Their dead cells accumulate on the seafloor, and are mined to serve as a filtering material.

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Question 5. What is the primary role of a mushroom's underground mycelium?

(1) absorbing nutrients 

(2) anchoring

(3) sexual reproduction 

(4) asexual reproduction

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Question 6. The vegetative (nutritionally active) bodies of most fungi are

(1) composed of hyphae 

(2) referred to as a mycelium.

(3) usually underground. 

(4) 1, 2, and 3

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Question 7. In most fungi, karyogamy does not immediately follow plasmogamy, which consequently

(1) means that sexual reproduction can occur in specialized structures.

(2) results in multiple diploid nuclei per cell.

(3) allows fungi to reproduce asexually most of the time.

(4) results in heterokaryotic or dikaryotic cells.

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Question 8. Members of this phylum produce two kinds of haploid spores, one kind being asexually produced conidia:

(1) Zygomycota

(2) Ascomycota

(3) Basidiomycota

(4) Glomeromycota

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Question 9. This phylum contains the mushrooms, shelf fungi, and puffballs:

(1) Zygomycota 

(2) Ascomycota

(3) Basidiomycota 

(4) Glomeromycota

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Question 10. In what structures do both Penicillium and Aspergillus produce asexual spores?

(1) asci 

(2) zygosporangia

(3) rhizoids 

(4) conidiophores

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Question 11. A researcher lyses a cell that contains nucleic acid molecules and capsomeres of tobacco mosaic virus (TMV). The cell contents are left in a covered test tube overnight. The next day this mixture is sprayed on tobacco plants. Which of the following would be expected to occur?

(1) The plants would develop some but not all of the symptoms of the TMV infection.

(2) The plants would develop symptoms typically produced by viroids.

(3) The plants would develop the typical symptoms of TMV infection.

(4) The plants would not show any disease symptoms.

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Question 12. Trypanosoma belongs to –

(1) Flagellated protozoans 

(2) Ciliated protozoans

(3) Sporozoans 

(4) Amoeboid protozoans

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Question 13. Members of which kingdom have cell walls and are all

heterotrophic?

(1) Plantae 

(2) Fungi 

(3) Animalia 

(4) Protista

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Question 14. Cyanobacteria are

(1) photoautotrophs

(2) photoheterotrophs

(3) chemoautotrophs

(4) chemoheterotrophs that perform decomposition.

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Question 15. Asexual reproduction in fungi is carried out by

(1) conidia 

(2) dikaryotic hyphae

(3) ascospores 

(4) basidiospores

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Question 16. All eukaryotic unicellular organisms belong to –

(1) Monera 

(2) Protista

(3) Fungi 

(4) Bacteria

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Question 17. In Whittaker’s five kingdom system of classification, eukaryotes are distributed among

(1) two kingdoms 

(2) three kingdoms

(3) four kingdoms 

(4) all the five kingdoms.

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Question 18. Which of the following statements is correct regarding sexual reproduction in Basidiomycetes?

(1) Plasmogamy occurs by the fusion of two somatic cells of different strains.

(2) Karyogamy and meiosis occur in the basidium producing four basidiospores.

(3) Basidiospores are exogenously produced on the basidium.

(4) All of these

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Question 19. The five kingdom classification was proposed by

(1) R.H. Whittaker 

(2) C.Linnaeus

(3) A. Roxberg 

(4) Virchow

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Question 20. Slime moulds are

(1) photosynthetic protists 

(2) saprophytic protists

(3) both (1) and (2) 

(4) none of these

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Question 21. Mycoplasmas are classified under which of the following kingdoms?

(1) Monera 

(2) Protista

(3) Fungi 

(4) Plantae

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Question 22. Organisms living in salty areas are called as

(1) Methanogens 

(2) Halophiles

(3) Heliophytes 

(4) Thermoacidophiles

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Question 23. An association between roots of higher plants and fungi is called

(1) Lichen 

(2) Fern

(3) Mycorrhiza 

(4) BGA

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Question 24. Which of the following groups of organisms are included under chrysophytes?

(1) Diatoms and desmids (golden algae)

(2) Diatoms and dinoflagellates

(3) Euglenoids

(4) Slime moulds

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Question 25. A dikaryon is formed when

(1) Meiosis is arrested

(2) The two haploid cells do not fuse immediately

(3) Cytoplasm does not fuse

(4) None of the above

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Question 26. Bacteria are grouped under four categories according to their shape. Study the given figures and select the correct option regarding this. 

(1) A-Cocci, B-Bacilli, C-Spirilla, D-Vibrio

(2) A-Spirilla, B-Bacilli, C-Vibrio, D-Cocci

(3) A-Bacilli, B-Spirilla, C-Vibrio, D-Cocci

(4) A-Bacilli, B-Spirilla, C-Cocci, D-Vibrio

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Question 27. Which of the following classes of Fungi are characterized by the presence of coenocytic, multinucleate and branched mycelium?

(1) Basidiomycetes 

(2) Phycomycetes

(3) Ascomycetes 

(4) Deuteromycetes

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Question 28. Contagium vivum fluidum was proposed by

(1) D.J. Ivanowsky 

(2) M.W. Beijerinek

(3) Stanley 

(4) Robert Hook

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Question 29. Red tides in warm coastal water develop due to the

abundance of

(1) dinoflagellates 

(2) euglenoids

(3) diatoms and desmids 

(4) slime moulds

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Question 30. Difference between Virus and Viroid is

(1) Absence of protein coat in viroid but present in virus

(2) Presence of low molecular weight RNA in virus but absent in viroid

(3) Both 1 and 2

(4) None of the above

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Question 31. Given figure is of filamentous blue green alga Nostoc. Identify the parts marked as A and B and select the correct option. 

	A	B
(1)	Heterocyst	Mucilaginous sheath
(2)	Vegetative cell	Mucilaginous sheath
(3)	Trichomes	Cell wall
(4)	Mucilaginous sheath	Heterocyst

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Question 32. Which out of the following is a ciliated protozoan?

(1) Plasmodium vivax 

(2) Amoeba proteus

(3) Paramoecium caudatum 

(4) Leishmania donovani

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Question 33. Which one of the following is an incorrect pair?

(1) Louis Pasteur – Coined the term 'vaccine'

(2) Beijerinck – Contagium vivum fluidum

(3) Ivanowsky – Discovered retroviruses

(4) Stanley – Crystallised TMV

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Question 34. With respect to fungal sexual cycle, choose the correct sequence of events

(1) Karyogamy, Plasmogamy and Meiosis

(2) Meiosis, Plasmogamy and Karyogamy

(3) Plasmogamy, Karyogamy and Meiosis

(4) Meiosis, Karyogamy and Plasmogamy

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Question 35. Cyanobacteria are classified under which of the following kingdoms?

(1) Monera 

(2) Protista

(3) Algae 

(4) Plantae

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Question 36. Which of the following organisms have been placed under kingdom Protista?

(1) Chrysophytes and dinoflagellates

(2) Euglenoids

(3) Slime moulds and protozoans

(4) All of these

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Question 37. Select the pair that consists of viral diseases.

(1) Mumps and small pox 

(2) Herpes and influenza

(3) Pneumonia and syphilis 

(4) Both (1) and (2)

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Question 38. Fungi show asexual reproduction by all of the following kinds of spores except

(1) conidia 

(2) oospores

(3) sporangiospore 

(4) zoospores

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Question 39. _________ bacteria oxidise various inorganic substances such as nitrates, nitrites and ammonia, and use the released energy for ATP production. They play an important role in recycling of nutrients (N, P, Fe, S etc.)

(1) Photosynthetic autotrophic

(2) Chemosynthetic autotrophic

(3) Parasitic

(4) Saprophytic

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Question 40. Members of phycomycetes are found in

i. Aquatic habitats

ii. On decaying wood

iii. Moist and damp places

iv. As obligate parasites on plants

Choose from the following options

(1) None of the above 

(2) i and iv

(3) ii and iii 

(4) All of the above

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Question 41. Consider the following statements.

I. Kingdom-Protista forms a link between monerans and the other organisms like plants, animal and fungi.

II. Protists reproduce asexually and sexually by a process involving cell fusion and zygote formation.

III. Being eukaryotes, the protistan cell body contains a well defined nucleus and other membrane-bound organelles.

Which of the statements given above are correct?

(1) I and II 

(2) I and III

(3) II and III 

(4) I, II and III

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Question 42. Kingdom-Animalia includes

(1) heterotrophic organisms

(2) eukaryotic organisms

(3) multicellular organism

(4) All of these

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Question 43. Match the following columns.

Column I	Column II
A. Phycomycetes	Alternaria and Trichoderma
B. Ascomycetes	Agaricus and Ustilago
C. Basidiomycetes	Aspergillus, Claviceps and Neurospora
D. Deuteromycetes	Mucor, Rhizopus and Albugo

(1) A-1, B-4, C-3, D-2

(2) A-2, B-1, C-4, D-3

(3) A-4, B-3, C-2, D-1

(4) A-3, B-2, C-1, D-4

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Question 44. Chief producers in oceans are

(1) golden brown algae 

(2) diatoms

(3) dinoflagellates

(4) euglenoids

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Question 45. Cuscuta is a

(1) parasite 

(2) pathogen

(3) saprophytic 

(4) fungus

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Detailed Solutions

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