CTET Science Question Papers 2017

CTET Science Question Papers 2017 - You can find here Question Papers of Science for Central Teacher Eligibility Test (CTET) Examination to be held in July 2017 online.

1. Which one of the following constitutes the two best reasons for distinguishing the living from
the non living?
(a) Growth and locomotion
(b) Irritability and locomotion
(c) Respiration and excretion
(d) Reproduction and locomotion
C

2.The largest living bird is
(a)duck
(b’) dodo
(c)ostrich
(d) peacock
C

3. Which of the following are the only mammals that possess nucleated red blood corpuscles?
I.Camel
2.Llama
3.Man
4.Dog

a) l and 2
(b) 2 and 3
(c )3 and 4
(d)l and4
A

4 When compared to the mammals, birds are less sensitive to temporary deprivation of water, be
cause (1.A.S.1990)
(a) urea excretion in mammals entails a greater loss of water than that in birds.
(A’) the water requirement per unit weight is less in birds than in mamtnals.
(c) absorption of water from the gut is more efficient in birds than in mammals.
(d) None of these
B

5. Birds get thrust (forward motion) and lift (upward motion) from
(a) air sacs .
b) flapping of wings
(c) twisting of feathers
(d) shape of wings which is similar to aeroplane blades
B

6. The mammal which lays eggs is
(a)Bat
(b) Squirrel
(c)Kangaroo
(d) DuckbilledPlatypus
D
7. Hormones are normally absent in
(a) rat
(b) monkey
(c) bacteria
(d) cat
C
8. The blood sucking organisms are
(a)Hookworms
(b) Earthworms
(c)Leeches
(d) Pin worms
C
9. ‘The blue coloured blood of this marine creature is used to test safety of drugs. It is found
abundantly along Orissa coast’.
The given description fits
(a)Scorpion
(b) Sepia
(c)Cattle fish
(d) Horse shoe crab
D
10.From which stage of silkmoth is silk obtained?
(a)Caterpillar
(b) Pupa
(c)Cocoon
(d) Adult
C
11. The gestation period of cows is
(a)150 days
(b) 280 days
(c)300 days
(d) 365 days
B
12. 50. Pick out the wrong pair
Animal Gestation period
(a) Monkey —300 days
(Li)Elephant —600 days
(c)Cow — 280 days
(d)Pig — 68 days
A
13.Taenia solium (Tape worm) lives as a parasite in(a)pig
(b) abdomen of man
(c)intestine of man
d) liver of man
C
14. Which of the following is an egg laying mammal?
(a)Bat
(b) Scaly ant -eater
(c)Whale
(d) Spiny ant -eater
D
15. The human immuno deficiency virus (HIV) is a living entity because it can
(a) move from one cell to another
(b) undergo autoreproduction
(c) disturb host cell respiration
(d) excrete in human sperm

1. Stem is modified into cladode :
(A) Casuarina
(B) Asparagus
(C) Opuntia
(D) Euphorbia
2. Verticillaster type of inflorescence is found in :
(A) Cotton
(B) Datura
(C) Lilium
(D) Ocimum
3. A simple one seeded fruit in which pericarp is fused with seed coat is :
(A) Achene
(B) Caryopsis
(C) Cypsela
(D) Nut
4. The portion of DNA which contains information for an entire polypeptide is called :
(A) Cistron
(B) Muton
(C) Recon
(D) Operon
5. Bicarpellary, syncarpous ovary with axile placentation is seen in :
(A) Solanaceae
(B) Caesalpinaceae
(C) Asteraceae
(D) Malvaceae
6. Alburnum is also called :
(A) Autumn wood
(B) Heart wood
(C) Sap wood
(D) Spring wood
7. The entry of pollen tube into the ovule through micropyle is called :
(A) Porogamy
(B) Mesogamy
(C) Anisogamy
(D) Chalazogamy
8. Type of pollination in Commelina is :
(A) Chasmogamy
(B) Geitonogamy
(C) Xenogamy
(D) Cleistogamy
9. The process of embryo formation without fertilization is known as :
(A) Apospory
(B) Apogamy
(C) Parthenocarpy
(D) Polyembryony
10. Which of the process Cholodny-Went theory is concerned with ?
(A) Photomorphogenesis
(B) Photoperiodism
(C) Phototropism
(D) Photorespiration
11. The hormone present in the liquid endosperm of coconut is :
(A) Cytokinin
(B) Gibberellin
(C) Ethylene
(D) Auxin
12. The phytohormone which influences apical dominance growth is :
(A) IAA
(B) ABA
(C) GA3
(D) C2H4
13. An example of short day plant is :
(A) Wheat
(B) Maize
(C) Chrysanthemum
(D) Radish
14. The ovary after fertilization is converted into :
(A) Embryo
(B) Endosperm
(C) Fruit
(D) Seed
15. The molecular formula of Chlorophyll ‘a’ is :
(A) C55H72O5N4Mg
(B) C55H70O5N4Mg
(C) C55H72O6N4Mg
(D) C50H72O5N4Mg
16. The first compound that accepts CO2 during dark phase is :
(A) NADP
(B) Ferrodoxin
(C) RUBP
(D) Cytochrome
17. Initiation codon for methionine is :
(A) AAA
(B) UUU
(C) UAA
(D) AUG
18. The deficiency of this micronutrient results in little leaf disease :
(A) Copper
(B) Zinc
(C) Boron
(D) Iron
19. Kranz anatomy is a morphological diversity in the leaves of :
(A) C3-plants
(B) C4-plants
(C) C3 and C4-plants
(D) CAM plants
20. Prechilling treatment to break seed dormancy is :
(A) Scarification
(B) Stratification
(C) Impaction
(D) Vernalization
21. The pyruvic acid formed during glycolysis is oxidized to CO2 and H2O in a cycle called :
(A) Calvin cycle
(B) Nitrogen cycle
(C) Hill reaction
(D) Krebs cycle
22. Respiratory quotient (RQ) is one in case of :
(A) Fatty acids
(B) Nucleic acids
(C) Carbohydrates
(D) Organic acids
23. An example of free living nitrogen fixing aerobic bacteria is :
(A) Clostridium
(B) Rhizobium
(C) Azotobacter
(D) Rhodospirillum
24. Identify the plant belonging to the Reed-Swamp stage in hydrarch succession :
(A) Juncus
(B) Sagittaria
(C) Salix
(D) Trapa
25. A gas produced by paddy fields and connected with global warming is :
(A) CO2
(B) Chlorine
(C) H2S
(D) Methane
26. If the strong partner is benefited and the weak partner is damaged, it is known as :
(A) Predation
(B) Allelopathy
(C) Symbiosis
(D) Commensalism
27. Acid rain is mainly caused due to increase in the levels of the gas(es) :
(A) SO2 only
(B) CO2 only
(C) SO2, CO2
(D) NO2 and SO2
28. The flow of energy among various trophic levels of an ecosystem is :
(A) Unidirectional
(B) Bidirectional
(C) Multidirectional
(D) Circular
29. Increase in atmospheric temperature due to CO2 is called :
(A) Pasteur effect
(B) Green-house effect
(C) Blackman effect
(D) Emerson effect
30. The protective-ozone layer is present in :
(A) Ionosphere
(B) Stratosphere
(C) Troposphere
(D) Lithosphere

31. Decomposition of organic matter is brought about by :
(A) Protozoa
(B) Plants
(C) Micro-organisms
(D) None of these
32. The smallest taxon is called :
(A) Class
(B) Order
(C) Genus
(D) Species
33. Which one of the following is the first National Park in India ?
(A) Kanha National Park
(B) Periyar National Park
(C) Corbett National Park
(D) Bandipur National Park
34. Which one of the following is having ssRNA ?
(A) TMV
(B) T2-bacteriophage
(C) Polio Virus
(D) CMV
35. In Whittaker’s system of classification, prokaryotes are placed in the kingdom :
(A) Protista
(B) Monera
(C) Plantae
(D) Animalia
36. Virus consists of :
(A) Nucleic acid and protein
(B) Nucleic acid
(C) Orotein
(D) None of these
37. This substance is present in the cell walls of Gram Positive bacteria only :
(A) Peptidoglycan
(B) Lipopolysaccharides
(C) Teichoic acids
(D) None of these

38. Highest degree of polymorphism is found in :
(A) Protozoa
(B) Cnidaria
(C) Platyhelminthes
(D) Arthropoda
39. Sea mouse belongs to phylum :
(A) Mollusca
(B) Cnidaria
(C) Arthropoda
(D) Annelida
40. One of the following animal belongs to Cyclostomata :
(A) Channa
(B) Loris
(C) Dodo
(D) Petromyzon
41. An egg laying mammal is :
(A) Delphinus
(B) Macaca
(C) Ornithorhynchus
(D) Macropus
42. In sharks, one of the following is absent :
(A) Claspers
(B) Placoid scales
(C) Cartilaginous endoskeleton
(D) Air bladder
43. The devil fish and sea hare are :
(A) Molluscs
(B) Crustaceans
(C) Coelenterates
(D) Marine fish and mammal
44. Endothelium of blood vessels is made up of :
(A) Simple cuboidal epithelium
(B) Simple squamous epithelium
(C) Simple columnar epithelium
(D) Simple non-ciliated columnar
45. In humans, sphincter of Oddi is associated with the opening of :
(A) Common hepatopancreatic duct
(B) Pyloric stomach
(C) Oesophagus
(D) Colon
46. In human beings, the duration of cardiac cycle is :
(A) 0•08 second
(B) 0•5 second
(C) 0•8 second
(D) 8•0 second
47. In which part of nephron, reabsorption is minimum from filtrate ?
(A) Henle’s loop
(B) Proximal convoluted tubule
(C) Distal convoluted tubule
(D) Collecting duct
48. Which hormone level reaches peak during luteal phase of menstrual cycle ?
(A) Luteinizing hormone
(B) Progesterone
(C) Follicle stimulating hormone
(D) Estrogen
49. The largest subunit of prokaryotic ribosomes is :
(A) 30S
(B) 40S
(C) 50S
(D) 60S
50. Which of the following is a part of endomembrane system of eukaryotic cell ?
(A) Peroxisomes
(B) Chloroplasts
(C) Mitochondria
(D) Golgi complexes

51. Inflammation of joints due to accumulation of uric acid crystals is called as :
(A) Gout
(B) Myasthenia gravis
(C) Osteoporosis
(D) Osteomalacia52. Chromosomes are visible with chromatids at this phase of mitosis :
(A) Interphase
(B) Prophase
(C) Metaphase
(D) Anaphase
53. Inheritance of ABO blood grouping is an example of :
(A) Dominance
(B) Codominance
(C) Incomplete dominance
(D) All of these
54. In a dihybrid cross between RRYY and rryy parents, the number of RrYy genotypes in F2 generation will be :
(A) 4
(B) 3
(C) 2
(D) 1
55. Identify a 47, + 21 disorder from the following :
(A) Down’s syndrome
(B) Turner’s syndrome
(C) Phenylketonuria
(D) Klinefelter’s syndrome
56. Uracil is present in RNA at the place of :
(A) Adenine
(B) Guanine
(C) Cytosine
(D) Thymine
57. Copying genetic information from one strand of DNA into RNA is :
(A) Translation
(B) Transcription
(C) Transformation
(D) Transduction
58. S. L. Miller’s closed flask contained :
(A) CH4
(B) H2
(C) NH3 and Water vapour
(D) All of these
59. Change of frequency of alleles in a population results  in evolution is proposed in :
(A) Darwin’s theory
(B) Lamarck’s theory
(C) Hardy-Weinberg principle
(D) De Vries theory
60. One of the following is the vestigial organ in human beings :
(A) Nictitating membrane
(B) Spleen
(C) Femur
(D) Tibia
61. The golden age of reptiles is :
(A) Cenozoic era
(B) Palaeozoic era
(C) Mesozoic era
(D) Silurian period
62. The theory of use and disuse of organ was proposed by :
(A) Darwin
(B) Lamarck
(C) De Vries
(D) Hooker
63. One of the following theories were proposed by Weissman :
(A) Law of inheritance
(B) Theory of inheritance of acquired characters
(C) Theory of natural selection
(D) Theory of germplasm
64. Ontogeny recapitulates phylogeny—
this theory is called :
(A) Biogenetic law
(B) Law of embryology
(C) Law of acquired characters
(D) Law of Bridges
65. The brain capacity of Homoerectus is :
(A) 800 cc
(B) 900 cc
(C) 1200 cc
(D) 1400 cc
66. An example of Innate immunity is :
(A) PMNL-neutrophils
(B) T-lymphocytes
(C) B-lymphocytes
(D) TH cells
67. Cocaine is extracted from :
(A) Erythroxylum coca
(B) Cannabis sativa
(C) Papaver somniferum
(D) Atropa belladonna
68. The enzyme that cuts DNA is :
(A) DNA-polymerase
(B) DNA-ligase
(C) DNA-lyase
(D) Restriction endonuclease
69. In the association between two organisms, if one organism is benefited and the other is not benefited, this relationship is known as :
(A) Symbiotism
(B) Mutualism
(C) Commensalism
(D) Parasitism
70. Opiate narcotics drugs are :
(A) Antianxiety
(B) Analgesic
(C) Hypnotic
(D) Antihistamine
71. The drug useful to increase cardiovascular effects in human beings is :
(A) Cocaine
(B) Barbiturate
(C) Benzodiazetine
(D) Insulin
72. In echolocation, the animal that produces high frequency sounds is :
(A) Monkey
(B) Butterfly
(C) Squirrel
(D) Bat
73. Two kingdoms constantly figured in all biological classifications are :
(A) Plantae and Animalia
(B) Monera and Animalia
(C) Protista and Animalia
(D) Protista and Plantae
74. The dioecious animal is :
(A) Liverfluke
(B) Hookworm
(C) Tapeworm
(D) Earthworm
75. Comb plates are found in :
(A) Adamsia
(B) Aurelia
(C) Nereis
(D) Pleurobrachia

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