TNPSC Group I Exam-Previous Year Question Paper-Subject wise Analysed Questions-Science-Part 4
76. The
disease diabetes mellitus is caused by the deficiency of
A) Iodine B) Insulin
C) Vitamins D) Proteins
Answer: (B)
77. The
specific rotation, if the plane of polarization is turned through 26.4° traversing 20cm length of 20% sugar
solution
A) 6.6° B) 0.66°
C) 66° D) 6°
Answer: (C)
78. The
single membrane surrounding vacuoles in plant cells is known as
A) Apoplast
B) Symplast
C) Tonoplast
D) Chloroplast
Answer: (C)
79. who
introduced the ‘binomial nomenclature’ to name organisms?
A) C.
Darwin
B) G. Mendel
C) E.
Mayer
D) C.
Linnaeus
Answer: (D)
80. Which
one of the following is correctly matched
A) Dempster’s
mass
B) Cathode
ray
C) Coolidge
tube - Solar spectrum
D) Cyclotron - Thermal conductivity
Answer: (A)
81. The
famous book ‘Cell Biology’ was written by
A) Odum
B) De
Roberties
C) Strickberger
D) Berril
Answer: (B)
82. Amoebic
dysentery is caused by
A) Entamoeba
coil
B) Entamoeba gingivalis
C) Entamoeba
histolytica
D) Amoeba proteus
Answer: (C)
83. Which
of the following is a natural polymer?
A) Cellulose B) Polystyrene
C) Polyethylene D) Nylon
Answer: (A)
84. The
ground state energy of the electron in the hydrogen atom 13.6eV.
The energy of the state n=2
is
A) 13.6
eV B) 6.8 eV
C) 4.5
eV D) 3.4 eV
Answer: (D)
85. Botanical
name of Turmeric is
A) Azadirachta indica
B) Hibiscus
rosa - sinensis
C) Curcuma domestica
D) Ammania
baccifera
Answer: (C)
TNPSC
GROUP – I Exam-2010
(Preliminary
Exam-Original Question paper)
86. Unicellular
plants and animals showing Eukaryotic cell structure are included under the
kingdom
A) Monera B) Fungi
C) Plantae D) Protista
Answer: (C)
87. Acrosome
is is made up of
A) Mitochondria B) Centrioles
C) Golgi
bodies D) Ribosomes
Answer: (C)
88. The Avogadro
number is
A) 6.00
X 1024 B) 6.023 X 1023
C) 6.054
X 1022 D) 6.504
X 1022
Answer: (B)
89. Viscous
force is directly proportional to
A) temperature
gradient
B) mass gradient
C) velocity
gradient
D) change gradient
Answer: (A)
90. The
structure observed by Robert Hooke in plant cells was
A) Protoplasm B) Cell wall
C) Nucleus D) Tracheids
Answer: (B)
91. How many
pairs of cranial nerves are present in shark fishes?
A) 8 B) 10
C) 12 D) 14
Answer: (B)
92. The
oxidation number of Fe in K3 [Fe(CN)6 ] is
A) +2 B) +3
C) +1 D) +4
Answer: (B)
93. The ray
which does not affect the photographic plate is
A) Alpha
ray B) Beta ray
C) Gama
ray D) none of these
Answer: (D)
94. Cisternae,
Thylakoid and Cristae are located at………., …………
and
……….. respectively
A) Mitochondria,
Ribosomes, Chloroplast
B) Golgi
body, Chloroplast, Mitochondria
C) Ribosomes,
Chloroplast, Mitochondria
D) Chromosoms, Thylakoid, Mitochondria
Answer: (B)
95. Which of
the following is Natural Rubber?
A) Poyester B) Polyamide
C) Polyisoprene D) Polysaccharide
Answer: (C)
96. The new
agricultural technology can best be described as
A) Land augmenting B) labour augmenting
C) labour displacing D) both land and labour augmenting
Answer: (D)
97. Three
capacitors each of capacitance 9pf is connected in series and is
connected
to 120 V supply. The potential difference across each capacitor is
A) 20
V B) 40 V
C) 60
V D) 90 V
Answer: (B)
98. Pepsin is
secreted by
A) Salivary
glands B) Stomach
C) Duodenum D) Small intestine
Answer: (B)
99. Which one
of the following fertilizers contains maximum percentage of nitrogen?
A) NPK B) Urea
C) Ammonium
nitrate D) Ammonium phosphate
Answer: (B)
100. When a ray
of light is passed through …….. crystal, double refraction occurs.
A) Calcite B) Sodium chloride
C) Diamond D) Zinc sulphide
Answer: (A)
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