BIOLOGICAL CLASSIFICATION

BY RAKSHITA SINGH
PYQ’S AND MCQ’S

1. Pick up the wrong statement [2015 RS] 5. A system of classification in which a large number
of traits are considered, is [1999]
(a) Protista have photosynthetic and (a) artificial system
heterotrophic modes of nutrition (b) synthetic system
(b) Some fungi are edible (c) natural system
(c) Nuclear membrane is present in Monera (d) phylogenetic system
(d) Cell wall is absent in Animalia
6. Phylogenetic classification is based on [1994]
2. Five kingdom system of classification (a) utilitarian system
suggested by R.H. Whittaker is not based on: (b) habits
(c) overall similarities
(a) Presence or absence of a well defined (d) common evolutionary descent

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nucleus.

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(b) Mode of reproduction. 7. Artificial system of classification was first used by

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(c) Mode of nutrition. (a) Linnaeus
(d) Complexity of body organisation. (b) De Candolle

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(c) Pliny the Elder

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3. In the five-kingdom system of classification, (d) Bentham and Hooker

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which single kingdom out of the following can

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include blue green algae, nitrogen-fixing 8. System of classification used by Linnaeus was

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bacteria and methanogenic archaebacteria? (a) natural system

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[1998, 2003] (b) Artificial system
(c) phylogenetic system
(a) Fungi (d) asexual system
(b) Plantae
(c) Protista 9. Classification given by Bentham and Hooker is
(d) Monera (a) artificial
(b) natural
4. In five kingdom system, the main basis of (c) phylogenetic
classification is [2002] (d) numerical

(a) Structure of nucleus 10.Genetic information in Paramecium is contained in

(b) Mode of nutrition (a) Micronucleus
(c) Structure of cell wall (b) Macronucleus
(d) Asexual reproduction (c) Both a and b
(d) Mitochondria
 BIOLOGICAL CLASSIFICATION
BY RAKSHITA SINGH
PYQ’S AND MCQ’S

16. Which of the following structures is not found

11. Trypanosoma belongs to class : [2017]
in a prokaryotic cell? [2015 RS]
(a) sarcodina
(a) Ribosome
(b) Zooflagellata
(b) Mesosome
(c) Ciliata
(c) Plasma membrane
(d) Sporozoa
(d) Nuclear envelope
12. Which among the following is not a prokaryote?
17. The structures that help some bacteria to
[2018]
attach to rocks and / or host tissues are: [2015 RS]
(a) Saccharomyces
(a) Fimbriae
(b) Mycobacterium
(b) Mesosomes
(c) Oscillatoria
(c) Mesoblast
(d) Nostoc

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(d) Rhizoids

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13. Which of the following are found in extreme

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18. Archaebacteria differ from eubacteria in: [2014]

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saline conditions? [2017]
(a) Cell membrane
(a) Eubacterial

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(b) Mode of nutrition

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(b) Cyanobacteria

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(c) Cell shape

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(c) Mycobacterial

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(d) Mode of reproduction
(d) Archaebacteria

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14. Which of the following components provides 19. The motile bacteria are able to move by: [2014]

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sticky character to the bacterial cell? [2017] (a) Fimbriae
(b) Flagella
(a) Nuclear membrane (c) Cilia
(b) Plasma membrane (d) Pili
(c) Glycocalyx
(d) Cell wall 20. Which of the following are likely to be present
in deep sea water? [NEET 2013]
15. Which among the following are the smallest (a) Eubacteria
living cells, known without a definite cell wall, (b) Blue-green algae
pathogenic to plants as well as animals and can (c) Saprophytic fungi
survive without oxygen? [2017] (d) Archaebacteria

(a) Pseudomonas 21. Specialized cells for fixing atmospheric

(b) Mycoplasma nitrogen in Nostoc are [NEET Kar. 2013]
(c) Nostoc (a) Akinetes
(d) Bacillus (b) Heterocyst
(c) Hormogonia
(d) Nodules
 BIOLOGICAL CLASSIFICATION
BY RAKSHITA SINGH
PYQ’S AND MCQ’S

22. The most abundant prokaryotes helpful to 27. Bacterial leaf blight of rice is caused by a
humans in making curd from milk and in species of : [NEET 2008]
production of antibiotics are the ones categorised
as: [2012] (a) Xanthomonas
(b) Pseudomonas
(a) Cyanobacteria (c) Alternaria
(b) Archaebacteria (d) Erwinia
(c) Chemosynthetic autotrophs
(d) Heterotrophic bacteria 28. In the light of recent classification of living
organisms into three domains of life
23. The cyanobacteria are also referred to as : (bacteria, archaea and eukarya), which one of the
[2012] following statements is true about archaea? [2008]

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(a) protists

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(b) golden algae (a) Archaea resemble eukarya in all respects

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(c) slime moulds (b) Archaea have some novel features that are

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(d) blue green algae absent in other prokaryotes and eukaryotes

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(c) Archaea completely differ from both

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24. How many organisms in the list given below are prokaryotes and eukaryotes

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autotrophs? (d) Archaea completely differ from prokaryotes.

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Lactobacillus, Nostoc, Chara, Nitrosomonas,

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Nitrobacter, Streptomyces, Saccharomyces, 29. Thermococcus, Methanococcus and

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Trypanosomes, porphyra, Wolffia [2012M] Methanobacterium exemplify: [2008]
(a) Archaebacteria that contain protein
(a) Four homologous to eukaryotic core histones
(b) Five (b) Archaebacteria that lack any histones
(c) Six resembling those found in eukaryotes but
(d) Three whose DNA is negatively supercoiled
(c) Bacteria whose DNA is relaxed or positively
25. In eubacteria, a cellular component that supercoiled but which have a cytoskeleton as
resembles eukaryotic cells is: [2011] well as mitochondria
(a) plasma membrane (d) Bacteria that contain a cytoskeleton and
(b) nucleus ribosomes
(c) ribosomes
(d) cell wall 30. Which one of the following statements about
mycoplasma is wrong? [2007]
26. Organisms called abundant ina: methanogens
are most [2011] (a) They are pleomorphic
(a) sulphur rock (b) They are sensitive to penicillin
(b) cattle yard (c) They cause diseases in plants
(c) polluted stream (d) They are also called PPLO.
(d) hot spring
 BIOLOGICAL CLASSIFICATION
BY RAKSHITA SINGH
PYQ’S AND MCQ’S

31. In which of the animals dimorphic nucleus 34. Which bacteria is utilized in gober gas plant?
is found? [2005] [2002]

(a) Methanogens
(a) Amoeba proteus
(b) Nitrifying bacteria
(b) Trypanosoma gambiense (c) Ammonifying bacteria
(c) Plasmodium vivax (d) Denitrifying bacteria
(d) Paramecium caudatum
35. Which statement is correct for bacterial
transduction? [2002]
32. The most thoroughly studied fact of the
known bacteria-plant interactions is the. (a) Transfer of some genes from one bacteria to

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[2004]

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another bacteria through virus

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(b) Transfer of genes from one bacteria to another

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(a) cyanobacterial symbiosis with some bacteria by conjugation
(c) Bacteria obtains its DNA directly

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aquatic ferns

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(d) Bacteria obtains its DNA from other external

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(b) gall formation on certain angiosperms by

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source

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Agrobacterium

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(c) nodulation of Sesbania stems by nitrogen 36. What is true for cyanobacteria? [2001]

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fixing
(a) Oxygenic with nitrogenase
bacteria
(b) Oxygenic without nitrogenase
(d) plant growth stimulation by phosphate- (c) Non-oxygenic with nitrogen
solubilising bacteria (d) Non-oxygenic without nitrogenase

33. The chief advantage of encystment to an 37. What is true for archaebacteria ?
(a) All halophiles
Amoeba is :
(b) All photosynthetic
(a) the chance to get rid of accumulated (c) All fossils
waste products (d) Oldest living beings
(b) the ability to survive during adverse 38. The main difference in Gram (+)ve and
physical conditions Gram (-)ve bacteria resides in their
(c) the ability to live for sometime without
(a) cell wall
ingesting food
(b) cell membrane
(d) Protection from predators and parasites
(c) cytoplasm
(d) flagella
 BIOLOGICAL CLASSIFICATION
BY RAKSHITA SINGH
PYQ’S AND MCQ’S

39. Photosynthetic bacteria have pigments in 44. Sex factor in bacteria is

(a) leucoplasts (a) Chromosomal replicon
(b) chloroplasts (b) F-replicon
(c) chromoplasts (c) RNA
(d) chromatophores (d) Sex-pilus

40. In prokaryotes, the genetic material is : 45. Temperature tolerance of thermal blue-green
(a) linear DNA with histones algae is due to [1994]
(b) circular DNA with histones
(c) linear DNA without histones (a) cell wall structure
(d) circular DNA without histones
(b) cell organisation
(c) mitochondrial structure
41. A few organisms are known to grow and

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(d) homopolar bonds in their proteins
multiply at temperatures of 100-105°C.

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They belong to. [1997]

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46. Nitrogen fixer soil organisms belong to

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(a) mosses
(a) marine archaebacteria

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(b) bacteria

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(b) thermophilic sulphur bacteria

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(c) green algae
(c) hot-spring blue-green algae (cyanobacteria)

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(d) soil fungi

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(d) thermophilic, subaerial fungi

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47. Entamoeba coli causes

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42. Transfer of genetic information from one

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(a) Pyrrhoea
bacterium to another in the transduction process
(b) Diarrhoea
is through. [2001]
(c) Dysentery
(a) Conjugation (d) None
(b) Bacteriophages released from the donor
bacterial strain 48. Escherichia coli is used extensively in
(c) Another bacterium biological research as it is
(d) Physical contact between donor and (a) easily cultured
recipient strain (b) easily available
(c) easy to handle
43. The hereditary material present in the (d) easily multiplied in host
bacterium Escherichia coli is [1998]
49. Genophore/bacterial genome or nucleoid is
(a) single stranded DNA made of
(b) deoxyribose sugar
(c) double stranded DNA (a) histone and non histone
(d) single stranded RNA (b) RNA and histones
(c) a single double stranded DNA
(d) a single stranded DNA
(a) histones and nonhistones
 BIOLOGICAL CLASSIFICATION
BY RAKSHITA SINGH
PYQ’S AND MCQ’S

50. Bacteria lack alternation of generation because 55. Chrysophytes, Euglenoids, Dinoflagellates
there is : and Slime moulds are included in the kingdom [2016]

(a) neither syngamy nor reduction division (a) Monera

(b) distinct chromosomes are absent (b) Protista
(c) no conjugation (c) Fungi
(d) no exchange of genetic material (d) Animalia

51. Name the organisms which do not derive 56. In which group of organisms the cell walls
energy directly or indirectly from sun [1991] form two thin overlapping shells which
(a) Chemosynthetic bacteria fit together? [2015 RS]
(b) Pathogenic bacteria

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(c) Symbiotic bacteria (a) Euglenoids

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(d) Mould (b) Dinoflagellates

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(c) Slime moulds

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52. Which one belongs to monera? (d) Chrysophytes

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(a) Amoeba 57. In the five-kingdom classification,

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(b) Escherichia

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chlamydomonas and Chlorella have been

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(c) Gelidium included in [2012M]

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(d) Spirogyra

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(a) protista
53. Which of the following organisms are known as (b) algae
chief producers in the oceans? [2018] (c) plantae
(d) monera
(a) Dinoflagellates
(b) Diatoms 58. Which one of the following organisms is not
(c) Euglenoids an example of eukaryotic cells ? [2011]
(d) Cyanobacteria
(a) Paramecium caudatum
54. Ciliates differ from all other protozoans in [2018] (b) Escherichia coli
(c) Euglena viridis
(a) using flagella for locomotion (d) Amoeba proteus
(b) having a contractile vacuole for removing
excess water 59. Single-celled eukaryotes are included in: [2010]
(c) having two types of nuclei
(d) using pseudopodia for capturing prey (a) Protista
(b) Fungi
(c) Archaea
(d) Monera
 BIOLOGICAL CLASSIFICATION
BY RAKSHITA SINGH
PYQ’S AND MCQ’S

60. Which one of the following is a slime mould? 65. The function of contractile vacuole,
[2007] in protozoa, is. [1995]
(a) locomotion
(a) Physarum (b) food digestion
(b) Thiobacillus (c) osmoregulation
(c) Anabaena (d) reproduction
(d) Rhizopus
66. Macro and micronucleus are the characteristic
61. The thalloid body of a slime mould feature of [1995]
(Myxomycetes) is known as [2006] (a) Paramecium and Vorticella
(b) Opelina and Nictothisus
(a) plasmodium (c) Hydra and Ballantidium

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(b) fruiting body (d) Vorticella and Nictothirus

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(c) mycelium

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(d) protonema 67. Excretion in Amoeba occurs through. [1997]
(a) lobopodia

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62. Auxopores and hormocysts are formed, (b) uroid portion

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respectively, by: [2005] (c) plasma membrane

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(d) contractile vacuole

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(a) Some diatoms and several cyanobacteria

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(b) Some cyanobacteria and diatoms 68. Protistan genome has embedded in cytoplasm

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(c) Several cyanobacteria and several diatoms (a) membrane bound nucleoproteins embedded in
(d) Several diatoms and a few cyanobacteria. cytoplasm
(b) free nucleic acid aggregates
63. In Amoeba and Paramecium osmoregulation (c) gene containing nucleoproteins condensed
occurs through [2002] together in loose mass
(d) nucleoprotein in direct contact with cell substance
(a) pseudopodia
(b) nucleus 69. Protists obtain food as :
(c) contractile vacuole (a) photosynthesisers, symbionts and holotrophs
(d) general surface (b) photosynthesisers
(c) chemosynthesisers
64. Which of the following organism possesses (d) holotrophs
characteristics of both a plant and an animal?
(a) bacteria 70. Protista includes :
(b) Euglena (a) heterotrophs
(c) Mycoplasma (b) chemoheterotrophs
(d) Paramecium (c) chemoautotrophs
(d) all of these
 BIOLOGICAL CLASSIFICATION
BY RAKSHITA SINGH
PYQ’S AND MCQ’S

1. C 26. B 51. A
2. A 27. A 52. B
3. D 28. B 53. B
4. B 29. A 54. C
5. C 30. B 55. B
6.D 31. D 56. D
7. C 32. B 57. B
8. B 33. B 58. B

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9. B 34. A 59. A
10. A
11. B
35. A
36. A
ING
60. A

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61. A

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12. A 37. D 62. D

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13. D 38. A 63. C
14. C

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39. D

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64. B

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15. B 40. D 65. C
16. D 41. A 66. A
17. A 42. B 67. D
18. A 43. C 68. A
19. B 44. B 69. A
20. D 45. D 70. D
21. B 46. B
22. D 47. D
23. D 48. A
24. C 49. C
25. A 50. A