Skip to main content

NEET

 Biological classification

1. Pick up the wrong statement

(a) Protista have photosynthetic and heterotrophic modes of nutrition

(b) Some fungi are eible

(c) Nuclear membrane is present in Monera

(d) Cell Wall is absent in Animalia

ANS: C

2. Five Kingdom system of classification suggested by R.H.Whittaker is not based on :

(a) Presence or absence of a well defined nucleus.

(b) Mode of reproduction

(c) Mode of nutrition

(d) Complexity of  body organisation

ANS: A

3. In the five-kingdom system of classification, which single kingdom out of the following can      include blue green algae, nitrogen-fixing bacteria and methanogenic archaebacteria ?

(a) Fungi

(b) Plantae

(c) Protista

(d) Monera

ANS: D

4. In the five kingdom system, the main basis of classification is

(a) structure of nucleus

(b) mode of reproduction

(c) structure of cell wall

(d) asexual reproduction.

ANS:B

5. A system of classification in which a large number of traits are considered, is 

(a) artificial system

(b) synthetic system

(c) natural system

(d) phylogenetic system

ANS: C

6. Phylogenetic classification is based on 

(a) utilitarian system

(b) habits

(c) overall similarities

(d) common evolutionary descent

ANS: D

7. Artifical system of classification was first used by

(a) Linnaeus

(b) De Candolle

(c) Pliny the Elder

(d) Bentham and Hooker

ANS : C

8. System of classification used by Linnaeus was

(a) natural system

(b) artificial system

(c) phylogenetic system

(d) asexual system

ANS : B

9. Classification given by Bentham and Hooker is

(a) artificial

(b) natural

(c) phylogenetic

(d) numerical

ANS : B

10. Which among the following is not a prokaryote?

(a) Saccharomyces

(b) Mycobacterium

(c) Oscillatoria

(d) Nostoc

ANS: A

11. Which of the following are found in extreme saline conditions ?

(a) Eubacteria

(b) Cyanobacteria

(c) Mycobacteria

(d) Archaebacteria

ANS: B

12. Which of the following components provides sticky character to the bacteria cell ?

(a) Nuclear membrane

(b) Plasma membrane

(c) Glycocalyx

(d) Cell Wall

ANS: A

13. Which of the following structures is not found in a prokaryotic cell?

(a) Ribosome

(b) Mesosome

(c) Holdfast

(d) Nuclear envelope

ANS: D

14. The structures that help some bacteria to attach to rocks and / or host tissues are :

(a) Fimbriae

(b) Flagella

(c) Cilia

(d) Pilli

ANS: C

15. Archaebacteria differ from eubacteria in :

(a) Cell membrane

(b) Mode of nutrition

(c) Cell Shape

(d) Mode of reproduction

ANS: A

16. The motile bacteria are able to move by

(a) Fimbriae

(b) Flagella

(c) Cilia

(d) Pilli

ANS: B

17. Which of the following are likely to be present in deep sea water ?

(a) Eubacteria

(b) Blue-green algae

(c) Saprophytic fungi

(d) Archaebacteria

ANS: D

18. Specialized cells for fixing atmospheric nitogen in Nostoc 

(a) Akinetes

(b) Heterocysts

(c) Hormogonia

(d) Nodules

ANS: B

19. The cynobacteria are also reffered to as

(a) protists

(b) golden algae

(c) slime moulds

(d) bluegreen algae

ANS: D

20. Organisms called methanogens are most abundant in a 

(a) sulphur rock 

(b)  cattle yard

(c) polluted stream

(d) hot spring

ANS: A

21. In eubacteria, a cellular component that resembles eukaryotic cells is

(a) plasma membrane

(b) nucleus

(c) ribosomes

(d) cell wall

ANS: B

22. Bacterial leaf blight of rice is caused by a species of

(a) Xanthomonas

(b) pseudomonas

(c) Alternaria

(d) Erwinia

ANS : A

23. Which one of the following statements about mycoplasma is wrong?

(a) They are pleomorphic

(b) They are sensitive to penicillin

(c) They cause diseases in plants

(d) They are also called PPLO.

ANS: B

24. In which of the animals dimorphic nucleus is found ?

(a)  Amoeba proteus

(b) Trypanosoma  gambiense

(c) Plasmodium vivax

(d) paramecium caudatum

ANS:D

25.  Which bacteria is utilized in gobar gas plant ?

(a) Methanogens

(b) Nitrifying bacteria

(c) Ammonifying bacteria

(d) Denitrifying bacteria

ANS: A

26. What is true for archaebacteria?

(a) All halophiles

(b) All photosynthetic

(c) All fossils

(d) Oldest living beings

ANS: D

27. The main difference in Gram(+ve) and Gram (-ve) bacteria resides in their

(a) cell wall

(b) cell membrane

(c) cytoplasam

(d) flagella

ANS: A

28. Photosynthetic bacteria have pigments in

(a) Leucoplasts

(b) chloroplasts

(c) chromoplasts

(d) chromatophores

ANS: D

29. Sex factor in bacteria is

(a) Chromosomal replication

(b) F-replication

(c) RNA

(d) Sex-pilus

ANS: B

30. Nitrogen fixer soil organisms belong to 

(a) mosses

(b) bacteria

(c) green algae

(d) soil fungi

ANS: B

31. Entameoba coli causes

(a) Pyrrhoea

(b) Diarrhoea

(c) Dysentry

(d) None

ANS: D

32. Escherichia coli is used extensively in biological research as it is

(a) easily cultured

(b) easily avaible

(c) easy to handle

(d) easily multiplied in host

ANS: A

33. Geneophore/bacterial genome or nucleiod is made of

(a) histones and nonhistones

(b) RNA and histones

(c) a single double stranded DNA

(d) a single stranded DNA

ANS: C

34.  Bacteria lack alternation of generation because there is

(a) neither syngamy nor reduction division

(b) distinct chromosomes are neither

(c) no conjuction 

(d) no exchange of genetic material

ANS: A

35. Which one belongs to monera ?

(a) Amoeba

(b) Escherichia

(c) Gelidium

(d) spirogyra

ANS: B

36. Which of the following organisms are known as chief producers in the ocean ?

(a) Amoeba

(b) Escherichia

(c) Gelidium

(d) Spirogyra

ANS: B

37.  In the five kingdom classification, chlamydomonas and chlorella have been included in

(a) protista

(b) fungi

(c) archae

(d) monera

ANS: A

38. The thalliod body of a slime mould is known as

(a) plasmodium

(b) fruiting body

(c) mycelium

(d) protonema

ANS; A

39. Auxopores and hormocytes are formed respectively by

(a) some diatoms and several cyanobacteria

(b) some cyanobacteria and diatoms

(c) several cyanobacteria and several diatoms

(d) several diatoms and a few cyanobacteria

ANS:D

40. In Amoeba and paramecium osmoregulation occurs through 

(a) pseudopodia

(b) nucleus

(c) contractile vacoule

(d) general surface

ANS:C

 


Comments

Post a Comment

Popular posts from this blog

The Muvendar

  The Sangam Age The first three centuries of the Common Era are widely accepted as the Sangam period,as the information for this period is mainly derived from the sangam Literature.More Correctly this has to be called as the early historical period and the second century BCE,as we have Clear epigraphical and archaeological evidence,in addition to literary evidence. The Muvendar Though the three Tamil ruling families were known to Ashoka in the third century BCE itself,some individual names are known only from the Sangam poems of the first century and later.Known as Muvendar, 'the three crowned kings',the Cheras,Cholas,and Pandays controlled major agrarian territories,trade routes and towns.But the satiyaputra (same as Athiyaman)found in the Ashokan inscription along with the above three houses is a velir chief in the sangam poems. The Cholas The cholas controlled the Central and northern parts of TamilNadu.Their core area of rule was the Kaveri delta,later known as Cholamandal...
Post a Comment
Read more

ROLE OF TAMILNADU IN THE INDIAN NATIONAL MOVEMENT

  INTRODUCTION Tamil Nadu played an important role in the Indian National Movement. Even prior to the Great Revolt of 1857, the rebellion in Panchalam Kuruchi, the 1801 "South Indian Rebellion" of the Marudhu brothers and the Vellore Mutiny of 1801 were the early anti-colonial struggles in Tamil Nadu. During the nationalistic era Tamil Nadu provided the Leaders like G.Subramania Bharathi, C.Rajagopalachari and K.Kamaraj to the National Movement. Besides, the nationalist movement in Tamil Nadu was as active as elsewhere. Beginning of the National Movement in Tamil Nadu The earliest political organisation, the Madras Native Association was started in july 1852. Lakshminarasu Chetty and Srinivas Pillai were the founders of this organization. The Madras Native Association was sharply critical of the policies of the East India Company's rule. subsequently in 1884, the Madras Maharaja Sabha was estabilished by P.Anandacharlu and P.Rangaiya Naidu. The Madras Native Association w...
Post a Comment
Read more

VELLORE MUTINY

VELLORE MUTINY   Vellore was the capital of erstwhile North Arcot district in Tamil Nadu. At present, this district is named after its capital Vellore. It is a well fortified and beautiful city. With the expansion of the East India Company's rule in India, the native rulers and their dependents suffered. The native rulers either submitted or rebelled. These rebellions had no clear vision or ideal but purely motivated by the territorial interest of the native rulers and their ambition to preserve the old feudal order. The heroism and sacrifice of individuals like Puli Thevar, Kattabomman and Marudhu Brothers had no parallel. But all these Leaders never organised the common people for a unified and meaningful cause. The ideas of nationalism , political consciousness and organized struggle came much later. In Vellore the native sepoys rose in revolt in 1806. This incident differs from other previous rebellions in. The earlier rebellions were those of the native rulers. The vellore Mut...
Post a Comment
Read more