BIOLOGICAL CLASSIFICATION | Class 11 Biology MCQ Chapter 2 | Biology MCQ series #2 | NEET 2024 |CBSE

  BIOLOGICAL CLASSIFICATION| Class 11 Biology MCQ 

BIOLOGICAL CLASSIFICATION

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Q1. Bacteria whose cell has only a curve/comma is

(A) Vibrio

(B) Cocci

(C) Spirilla

(D) Bacilli

Ans - (A) Vibrio

Q2. which of the following is a correct statement ? [NEET 2022] 

(A) Micoplasma have DNA, ribosome and Cell wall.

(B) cyanobacteria are a group of autotrophic organism classified under Kingdom Monera.

(C) bacteria are exclusively heterotrophic organism.

(D) slime moulds are saprophytic organism classified under Kingdom Monera

Ans - (B)

Q3. Who divided the animals into two groups those which had red blood and those that did not?

(A) whittaker

(B) T.O Diener

(C) lennaeus

(D) Aristotle

Ans - (D) Aristotle

Q4. Which of the following correct about viroids ? [NEET 2020]

(A) they have free RNA without protein coat

(B) they have DNA with protein coat

(C) they have free DNA without protein coat

(D) they have RNA with protein coat 

Ans - (A) they have free RNA without protein coat

Q5. Cell wall of fungi is made up of -

(A) cellulose

(B) protein

(C) chitin

(D) all of the above 

Ans - (C) chitin

Q6. Which one of the following is wrong for fungi? (2016 - II) 

(A) They are heterotrophic

(B) They are both unicellular and multicellular

(C) All fungi possess a purely cellulosic cell wall

(D) They are eukaryotic

Ans - (C) All fungi possess a purely cellulosic cell wall

Q7. Two kingdom System of classification was developed by -

(A) Copeland

(B) Aristotle

(C) Linnaeus

(D) Whittaker

Ans - (C) Linnaeus

Q8. The boundaries of kingdom ‘x’ is not well-defined. Which of the following organism belongs to kingdom ‘x’? 

(A) Halobacterium

(B) Yeast

(C) Amoeba

(D) Anabaena

Ans - (C) Amoeba

Q9. Which types of bacteria play a great role in recycling nutrients?

(a) Archaebacteria 

(b) Photosynthetic autotrophic bacteria

(c) Chemosynthetic autotrophic bacteria

(d) Heterotrophic bacteria

Ans - (c) Chemosynthetic autotrophic bacteria

Q10. Which of the following statement is incorrect? (2019) 

(A) Viruses are obligate parasites

(B) Infective constituent in viruses is the protein coat.

(C) Prions consist of abnormally folded proteins

(D) Viroids lack a protein coat

Ans - (B) Infective constituent in viruses is the protein coat.

Q11. An association between roots of higher plants and fungi is called

(A) Lichen

(B) mycorrhiza

(C) Cyanobacteria

(D) fern

Ans - (B) mycorrhiza

Q12. which bacteria would function best in hot temperature (45-60°C) ?

(A) Thermoacidophiles

(B) Mesophiles

(C) halophiles

(D) all of the above

Ans - (A) Thermoacidophiles

Q13. cyanobacteria are called blue green Algae because

(A) they do not reproduce gametes

(B) they are not Green

(C) they have chlorophyll pigment

(D) they are as small as bacteria

Ans - (C) they have chlorophyll pigment 

Q14. In bacteria, the site for respiratory activity is found in: 

(A) Episome

(B) Microsome

(C) Ribosome

(D) Cell membrane

Ans - (D) Cell membrane

Q15. Colonies of Eubacteria are surrounded by 

(A) Polysaccharide sheath

(B) Mucous sheath

(C) Gelatinous sheath

(D) None of these

Ans - (C) Gelatinous sheath

Q16. Chrysophytes, Euglenoids, Dinoflagellates and Slime moulds are included in the kingdom: (2016 - I)

(A) Animalia

(B) Protista

(C) Fungi

(D) Monera

Ans - (B) Protista

Q17. In which of the following kingdom, both plant and animal like unicellular organisms are placed? 

(A) Fungi

(B) Monera

(C) Plantae

(D) Protista

Ans - (D) Protista

Q18. Which is the basis of classification of kingdom fungi? 

(A) Morphology of mycelium

(B) Mode of spore formation

(C) Fruiting bodies

(D) All of the above

Ans - (D) All of the above

Q19. Choose the wrong statements: (2015 Re) 

(A) Neurospora is used in the study of biochemical genetics

(B) Morels and truffles are poisonous mushrooms

(C) Yeast is unicellular and useful in fermentation

(D) Penicillium is multicellular and produces antibiotics

Ans - (B) Morels and truffles are poisonous mushrooms

Q20. Organism which obtains their nutrition from dead and decaying matter (detritus) is called 

(A) Parasitic

(B) Holophytic

(C) Holozoic

(D) Saprophytic

Ans - (D) Saprophytic

Q21. All eukaryotic unicellular organism belong to :

(A) protista

(B) Monera

(C) fungi

(D) bacteria

Ans - (A) protista

Q22. Nostoc and Anabaena can fix atmospheric nitrogen in specialised cells known as 

(a) Conidiophores 

(b) Auxospores

(c) Hormogonia

(d) Heterocysts

Ans - (d) Heterocysts

Q23. Diatomaceous earth is used as 

(A) Polishing

(B) Filtration of oils

(C) Filtration of syrups

(D) All of the above

Ans - (D) All of the above

Q24. Mushrooms, bracket fungi or puffballs are placed in  

(A) Ascomycetes

(B) Basidiomycetes

(C) Phycomycetes

(D) Deuteromycetes

Ans - (B) Basidiomycetes

Q25. Which of the following is true for Kingdom Animalia?  

(A) Cell wall are present in animal cell.

(B) Their mode of nutrition is holozoic.

(C) They do not follow a definite growth pattern.

(D) All of them are capable of locomotion.

Ans - (B) Their mode of nutrition is holozoic.

Q26. Select the wrong statements: (2015 Re)

(A) W.M. Stanley showed that viruses could be crystallised

(B) The term ‘Contagium vivum fluidum’ was coined by M.W. Beijerinek

(C) Mosaic disease in tobacco and AIDS in human being are caused by viruses

(D) The viroids were discovered by D.J. Ivanowsky

Ans - (D) The viroids were discovered by D.J. Ivanowsky

Q27. Which disease is caused by viroids? 

(A) Leaf curling disease

(B) Dwarfing disease

(C) Potato spindle tuber disease

(D) All of the above

Ans - (C) Potato spindle tuber disease

Q28. Read the statements (A-D) and select the incorrect ones. 

A.] Though the bacterial cell structure is very simple, they are very complex in behaviour. 

B.] Chrysophytes include diatoms, desmids and dinoflagellates.

C.] Slime moulds, during suitable conditions, forms fruiting bodies. 

D.] Lichen, in nature, had two different organisms within them. 

(A) A & B 

(B) A & D

(C) B & C

(D) C & D

Ans - (C) B & C

Q29. The virus which contains both DNA and RNA 

(A) TMV

(B) Rhinovirus

(C) Bacteriophage

(D) None of the above

Ans - (D) None of the above

Q30. Viruses are non-cellular organisms but replicate themselves once they infect the host cell. Which of the following kingdom do viruses belong to? 

(A) Monera

(B) Fungi

(C) Protista

(D) None of the above.

Ans - (D) None of the above.

QFY. Which of the following organisms are known as chief producers in the oceans? (2018) 

(A) Dinoflagellates

(B) Diatoms

(C) Cyanobacteria

(D) Euglenoids

Ans - (B) Diatoms

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