Temperature can be expressed as derived quantity in terms of
A
length and mass
B
mass and time
C
length, mass and time
D
None of these
Question 2Single Answer
Electron volt is a unit of
A
potential difference
B
charge
C
energy
D
capacity
Question 3Single Answer
Dimensions of impulse are
A
[MLT โ1]
B
[MLTยฒ]
C
[MTโ2]
D
[MLโ1Tโ3]
Question 4Single Answer
Potential is measured in
A
joule/coulomb
B
watt/coulomb
C
newtonโsecond
D
None of these
Question 5Single Answer
One Nanometer is equal to
A
10โ9m
B
10โ6m
C
10โ10m
D
10โ3m
Question 6Single Answer
Maxwell is the unit of
A
magnetic susceptibility
B
intensity of Magnetisation
C
magnetic Flux
D
magnetic Permeability
Question 7Single Answer
Which of the following is derived physical quantity ?
A
Mass
B
Velocity
C
Length
D
Time
Question 8Single Answer
What are the units of magnetic permeability ?
A
Wb Aโ1 mโ1
B
Wbโ1 Am
C
Wb A mโ1
D
Wb Aโ1 m
Question 9Single Answer
The dimensions of pressure gradient are
A
[MLโ2 Tโ2]
B
[MLโ2 Tโ1]
C
[MLโ1 Tโ1]
D
[MLโ1 Tโ2]
Question 10Single Answer
The dimensions of Rydberg's constant are
A
[M0Lโ1T]
B
[MLTโ1]
C
[M0 Lโ1T0]
D
[ML0 T2]
Question 11Single Answer
'Farad' is the unit of
A
resistance
B
conductance
C
capacitance
D
inductance
Question 12Single Answer
S.I. unit of surface tension is
A
degree/cm
B
N/m
C
N/mยฒ
D
Nm
Question 13Single Answer
Which one of the following pairs does not have the same dimension ?
A
Potential energy and Kinetic energy
B
Density and specific gravity
C
Focal length and height
D
Gravitational force and frictional force
Question 14Single Answer
Which one of the following physical quantity has the same unit as that of pressure ?
A
Angular momentum
B
Stress
C
Strain
D
Work
Question 15Single Answer
The symbol of SI unit of inductance is H. It stands for
A
Holm
B
Halogen
C
Henry
D
Hertz
Question 16Single Answer
Light year is a measure of
A
time
B
distance
C
total amount of light falling on the Earth in a year
D
average intensity of light falling on the Earth in a year
Question 17Single Answer
Which one of the following is not a dimension less quantity ?
A
Strain
B
Relative density
C
Frequency
D
Angle
Question 18Single Answer
The dimensions of universal gas constant are
A
[Lยฒ Mยน Tโ2 Kโ1]
B
[Lยน Mยฒ Tโ2 Kโ1]
C
[Lยน Mยน Tโ2 Kโ1]
D
[Lยฒ Mยฒ Tโ2 Kโ1]
Question 19Single Answer
The dimensions of magnetic moment are
A
[LยฒAยน]
B
[LยฒAโ1]
C
[Lยฒ/Aยณ]
D
[LAยฒ]
Question 20Single Answer
The dimensions of Wien's constant are
A
[ML0TK]
B
[M0LT0K]
C
[M0L0TK]
D
[MLTK]
Question 21Single Answer
The dimensional formula of wave number is
A
[M0L0Tโ1]
B
[M0Lโ1T0]
C
[Mโ1 Lโ1 T0]
D
[M0 L0 T0]
Question 22Single Answer
The dimensional of Hubble โs wave number is
A
[Tโ1]
B
[M0L0Tโ2]
C
[MLT4]
D
[MTโ1]
Question 23Single Answer
The dimensions of solar constant is
A
[M0L0T0]
B
[MLTโ2]
C
[MLยฒTโ2]
D
MTโ3
Question 24Single Answer
The dimensional formula for entropy is
A
[MLTโ2Kยน]
B
[ML2 T-2]
C
[MLยฒTโ2Kโ1]
D
[MLยฒTโ2K]
Question 25Single Answer
Dimension of specific heat are
A
[MLยฒ Tโ2 K]
B
[MLยฒ Tโ2 Kโ1]
C
[MLยฒTยฒKโ1]
D
[LยฒTโ2Kโ2]
Question 26Single Answer
The physical quantity which has the dimensional formula [MยนTโ3] is
A
surface tension
B
solar constant
C
density
D
compressibility
Question 27Single Answer
Which one of the following elements is used as a timekeeper in atomic clocks ?
A
Potassium
B
Caesium
C
Calcium
D
Magnesium
Question 28Single Answer
Which one of the following is the value of one nanometer ?
A
10โ7 cm
B
10โ6 cm
C
10โ4 cm
D
10โ3 cm
Question 29Single Answer
What is the unit of pressure ?
A
Newton/sq. meter
B
Newtonโmeter
C
Newton
D
Newton/meter
Question 30Single Answer
The unit of pressure is
A
kg/cmยฒ
B
kg/cm
C
kg/mm
D
kg/cm3
Question 31Single Answer
Which one of the following quantities doe not have unit ?
A
Stress
B
Force
C
Strain
D
Pressure
Question 32Single Answer
Dimensional formula for thermal conductivity is here K denotes the temperature:
A
MLTโ2K
B
MLTโ2Kโ2
C
MLTโ3K
D
MLTโ3Kโ1
Question 33Single Answer
Which of the following is the unit of molar gas constant ?
A
JKโ1 molโ1
B
Joule
C
JKโ1
D
J molโ1
Question 34Single Answer
Density of liquid is 16.8 g cmโ3. Its value in the International System of Units is
A
16.8 kgmโ3
B
168 kgmโ3
C
1680 kgmโ3
D
16800 kgmโ3
Question 35Single Answer
The dimensional formula of couple is
A
[MLยฒ Tโ2]
B
[MLTยฒ]
C
[MLโ1Tโ3]
D
[MLโ2Tโ2]
Question 36Single Answer
Subtract 0.2 J from 7.26 J and express the result with correct number of significant figures.
A
7.1 J
B
7.06 J
C
7.0 J
D
7 J
Question 37Single Answer
Multiply 107.88 by 0610 and express the result with correct number of significant figures.
A
65.8068
B
65.807
C
65.81
D
65.8
Question 38Single Answer
When 97.52 is divided by 2.54, the correct result is
A
38.3937
B
38.394
C
38.39
D
38.4
Question 39Single Answer
Which of the following is the most accurate ?
A
200.0m
B
20 ร 10ยน m
C
2ร10ยฒm
D
data is inadequate
Question 40Single Answer
The area of a square is 5.29 cmยฒ. The area of 7 such square taking into account the significant figures is:
A
37cmยฒ
B
37.030 cmยฒ
C
37.03 cmยฒ
D
37.0 cmยฒ
Question 41Single Answer
The SI unit of coeffient of mutual inductance of a coil is
A
henry
B
volt
C
farad
D
weber
Question 42Single Answer
The S.I. unit of pole strength is
A
Amยฒ
B
Am
C
Amโ1
D
Amโ2
Question 43Single Answer
Which is dimensionless ?
A
Force/acceleration
B
Velocity/accerleration
C
Volume/area
D
Energy/work
Question 44Single Answer
The expression [MLโ1Tโ2] does not represent
A
pressure
B
power
C
Stress
D
Young's modulus
Question 45Single Answer
The dimensional formul of current density is
A
[M0Lโ2Tโ1Q]
B
[M0L2T1Qโ1]
C
[MLTโ1Q]
D
[MLโ2Tโ1Qยฒ]
Question 46Single Answer
Match the List โ I with List โ II
List - Iย ย ย ย ย ย ย ย ย ย ย ย ย ย ย ย ย List - II
(Units)ย ย ย ย ย ย ย (Physical quantity)
A. Wattย ย ย ย ย ย ย ย ย ย ย ย ย ย ย ย 1. Electric charge
B. Teslaย ย ย ย ย ย ย ย ย ย ย ย ย ย 2. Power
C. Coulombย ย ย ย ย ย 3. Luminous intensity
D. Candelaย ย ย ย ย ย ย 4. Magnetic field
Select the correct answer from the codes given below :
A
A B C D
1 4ย 1ย 3
B
1 2ย 3 4
C
1 2ย 4ย 3
D
2 4 3ย ย 1
Question 47Single Answer
Match the List โ I with List โ II
List - Iย ย ย ย ย ย ย ย ย ย ย ย ย ย ย ย ย ย ย ย ย ย ย ย ย ย ย List - II
(Physical quantity)ย ย ย (Units)
A. Powerย ย ย ย ย ย ย ย ย ย ย ย ย ย ย ย ย ย ย 1. kg msโ1
B. Energyย ย ย ย ย ย ย ย ย ย ย ย ย ย ย ย ย ย 2. kg mยฒsโ1
C. Momentumย ย ย ย ย ย ย ย ย 3. Nmโ2
D. Pressureย ย ย ย ย ย ย ย ย ย ย ย ย 4. kW
ย ย ย ย ย ย ย ย ย ย ย ย ย ย ย ย ย ย ย ย ย ย ย ย ย ย ย ย ย ย ย ย ย ย ย 5. kWh
Select the correct answer from the codes given below :
A
A B C D
4 5 1ย 3
B
4 5 1 2
C
5 4 1 2
D
5 4 2 3
Question 48Single Answer
What is the correct sequence in which the lengths of the following units increase ?
(1) Angstrom
(2) Micron
(3) Nanometer
Select the correct answer from the codes given below :
A
1, 2, 3
B
3, 1, 2
C
1, 3, 2
D
2, 3, 1
Question 49Single Answer
Match the List โ I with List โ II
List - Iย ย ย ย ย ย ย ย ย ย ย ย ย ย ย ย ย ย ย ย ย ย ย ย ย ย ย ย ย ย ย ย ย ย List - II
(Physical quantitiy)ย ย ย ย ย ย ย ย ย ย (Units)
A. Densityย ย ย ย ย ย ย ย ย ย ย ย ย ย ย ย ย ย ย ย ย ย ย ย 1. [MLTโ2]
B. Forceย ย ย ย ย ย ย ย ย ย ย ย ย ย ย ย ย ย ย ย ย ย ย ย ย ย ย 2. [MLโ3]
C. Energyย ย ย ย ย ย ย ย ย ย ย ย ย ย ย ย ย ย ย ย ย ย ย ย 3. [MLTโ1]
D. Momentumย ย ย ย ย ย ย ย ย ย ย ย ย ย ย ย 4. [ML2Tโ2]
Select the correct answer from the codes given below :
A
A B C D
3 2ย 4ย 1
B
1 2 3 4
C
2 1 4 3
D
3 2 1 4
Question 50Single Answer
Match the List โ I with List โ II
List - Iย ย ย ย ย ย ย ย ย ย ย ย ย ย ย ย ย ย ย ย ย ย ย ย ย ย ย ย ย List - II
(Physical quanitity)ย ย ย ย ย (Units)
A. Solid angleย ย ย ย ย ย ย ย ย ย ย 1. pascal
B. Impulseย ย ย ย ย ย ย ย ย ย ย ย ย ย ย ย ย 2. Steradian
C. Viscosityย ย ย ย ย ย ย ย ย ย ย ย ย ย ย 3. Newtonโsecond
D. Pressureย ย ย ย ย ย ย ย ย ย ย ย ย ย 4. Pascalโsecond
Select the correct answer from the codes given below :
A
A B C D
2 4ย 3 1
B
2 3 4 1
C
1 4 3 2
D
1 3 4 2
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Chemistry
Question 51Single Answer
Which of the following is not a synthetic fibre:
A
Anygora
B
Rayon
C
Nylon
D
Polyster
Question 52Single Answer
Which one of the following is not contained in Portland cement ?
A
Ca3Al2O6
B
Ca3SiO5
C
Ca2SiยญO4
D
Ca3(PO4)2
Question 53Single Answer
What is the reson for white cement to be white ?
A
It does not contain carbon
B
It does not contain silicon
C
It does not contain iron
D
It does not contain calcium
Question 54Single Answer
Which fertilizer is assimilated directly by the plant ?
A
Super phosphate
B
Nitrolim
C
Muriate of Potash
D
Humus
Question 55Single Answer
Which of the following chemicals is used in foam fire extinguishers ?
A
Aluminium sulphate
B
Copper sulphate
C
Cobalt sulphate
D
Nickel sulphateย
Question 56Single Answer
What is a mixture of potassium nitrate, powdered charcoal and sulphur called ?
A
Glass
B
Cement
C
paint
D
Gun powder
Question 57Single Answer
Which one of the following chemicals is used in beauty parlours for hair โ setting ?
A
Sulphur based
B
Phosphorus based
C
Silicon based
D
Iron basedย
Question 58Single Answer
Which one of the following is used as a mordant in dyeing and tanning industry ?
A
Magnesium oxide
B
Magnesium carbonate
C
Magnesium chloride
D
Magnesium sulphate
Question 59Single Answer
Which one of the following substances is used in the manufacture of safety matches ?
A
Red phosphorus
B
White phosphorus
C
Phosphorus trioxide (P2O3)
D
Black phosphorus
Question 60Single Answer
Which one of the following polymeric materials is used for making bullet proof jacket ?
A
Nylon โ6, 6
B
Rayon
C
Kevlar
D
Dacron
Question 61Single Answer
Which one of the following is another name of RDX
A
Cyanohydrin
B
Dextran
C
Cyclohexane
D
Cyclonite
Question 62Single Answer
Which one of the following is used as an explosive ?
A
Phosphorus trichloride
B
Mercuric oxide
C
Graphite
D
Nitroglycerine
Question 63Single Answer
Flint glass is obtained from which of the following ?
A
Zinc and barium borosilicate
B
Sand, red lead and potassium carbonate
C
Sodium aluminium borosilicate
D
Pure silica and zinc oxide
Question 64Single Answer
Which one of the following correctly defines the state of glass ?
A
Crystalline solid
B
Super cooled liquid
C
Condensed gas
D
Liquid crystal
Question 65Single Answer
Which one of the following is not used as fertilizer ?
A
Ammonium nitrate
B
Ammonium sulphide
C
Ammonium phosphate
D
Ammonium sulphateย ย
Question 66Single Answer
Which one of the following elements is needed in the human body to transfer electrical signals by nerve cells ?
A
Lithium
B
Sodium
C
Rubidium
D
Caesium
Question 67Single Answer
Which one of the following is NOT true for bleaching powder ?
A
It is used as a reducing agent in chemical industries
B
It is used for bleaching wood pup in paper factories
C
It is used for disinfecting drinking water
D
It is used for bleaching linen in textile industry
Question 68Single Answer
Hard glass having the same ingredientsas soft glass excepts.
A
hard glass have Na in place of K
B
hard glass having K in place of Na
C
hard glass having both Na and K
D
None of the above
Question 69Single Answer
A complete fertilizer provides
A
N,P, K
B
S, K, N
C
S, B, K
D
N, S, P
Question 70Single Answer
Antacids are commonly used to get rid of acidity in the Stomach. A commonly used antacid is.
A
sodium hydrogen phthalate
B
magnesium hydroxideย ย
C
calcium hydroxide
D
manganese acetate
Question 71Single Answer
Annealing of glass is done to.
A
make it brittle
B
make it opaque
C
make it transparent
D
None of the above
Question 72Single Answer
Petrochemicals are obtained from.
A
coal
B
petroleum
C
coal tar
D
All of these
Question 73Single Answer
The use of chemicals for treatment of diseases is called as.
A
isothermotherapy
B
angiotherapy
C
physiotherapy
D
chemotherapy
Question 74Single Answer
Which of the following is a hypnotic drug ?
A
luminal
B
salol
C
catechol
D
chemisol
Question 75Single Answer
Teflon is a polymer of which of the following monomers ?
A
Tetrafluoroethylene
B
Vinyl chloride
C
Acetylene dichlorideย ย
D
None of the above/More than one of the above
Question 76Single Answer
LPG used as domestic fuel chiefly containsโ
A
Methane
B
Propane
C
Ethylene
D
Butane
E
None of the above/More than one of the aboveย ย ย
Question 77Single Answer
Glass is a.
A
liquid
B
colloid
C
nonโcrystalline amorphous solid
D
crystalline solid
Question 78Single Answer
Which one of the following acids is used for etching glass ?
A
H2SO4
B
HNO3
C
HF
D
HCI
Question 79Single Answer
What is the purpose of adding plasticizers in paint manufacturing process ?
A
They act as a filmโforming constituent
B
They reduce the viscosity
C
They prevent the polymerization and condensation
D
They provide elasticity to the film and minimize its cracking
Question 80Single Answer
Which raw material is used in the preperation of soft glass ?
A
K2CO3, SiO2, CaCO3
B
K2CO3, SiO2, PbCO3
C
Na2CO3, SiO2, CaCO3
D
Na2CO3, SiO2,ย PbO
Question 81Single Answer
What is the composition of nitrolim โ a chemical fertilizer ?
A
Nitrogen and limestone
B
Calcium carbide and nitrogen
C
Calcium carbide and carbon
D
None of above
Question 82Single Answer
the major component used in preparation of different type of glasses is.
A
Silica
B
Sodium borate
C
Calcium silicate
D
Sodium silicate
Question 83Single Answer
Salts of which of the following elements provide colours to fireworks ?
A
Zinc and sulphur
B
Potassium and mercury
C
Strontium and barium
D
Chromium and nickel
Question 84Single Answer
Given below are two statements :
Statement I : Phenyl is used as a household germicide.
Statement II : Phenyl is phenol derivative and phenol is an effective germicide.
In the light of the above statement, choose the correct answer from the options given below:
A
Both Statement I and II are correct and Statement II is the correct explanation of Statement I
B
Both Statement I and Statement II are true but Statement II is NOT the correct explanation of Statement I
C
Statement I is correct, but Statement II is incorrect
D
Statement I is incorrect, but Statement II is correct
Question 85Single Answer
Given below are two statements :
Statement I : Coalโbased thermal power stations contribute to acidโrain.
Statement II : Oxides of carbon are emitted when coal burns.
In the light of the above statement, choose the correct answer from the options given below:
A
Both Statement I and II are individually correct and Statement II is the correct explanation of Statement I
B
Both Statement I and Statement II are individiaully correct but Statement II is not the correct explanation of Statement I
C
Statement I is correct, but Statement II is incorrect
D
Statement I is incorrect, but Statement II is correct
Question 86Single Answer
Terfenadine is commonly used as a/an.
A
transquilizer
B
antihistamine
C
antimicrobial
D
antibiotic
Question 87Single Answer
Which one of the following is not a tranqualizer ?
A
Equanil
B
Veronal
C
Salvarsan
D
Serotonin
Question 88Single Answer
Barbituric acid and its derivatives are well known.
A
antipyreticsย ย ย
B
analgesics
C
antisepticsย ย
D
tranquilizersย
Question 89Single Answer
Which one among is not an analgesic ?
A
Ibuprofen
B
Naproxen
C
Aspirin
D
Valium
Question 90Single Answer
Various phenol derivatives, tincture of iodine (2 โ 3%) I 2 in (water/alcohol) and some dyes like methylene blue are.
A
antiseptics
B
disinfectants
C
analgesics
D
antipyretics
Question 91Single Answer
Commonly used antiseptics 'Dettol' is a mixture of.
A
oโchlorophenozylenol + terpeneol
B
oโcresol + terpeneol
C
phenol + terpeneol
D
chloroxylenol + terpeneol
Question 92Single Answer
Which of the following is not an antiseptic drug ?
A
Iodoform
B
Dettol
C
Gammexene
D
Genatian violet
Question 93Single Answer
Which one of the following substances is made from natural raw materials ?
A
Rayon
B
Nylon
C
Polyster
D
Polystyrene
Question 94Single Answer
The polymeric fibre used as a substitute for wool in making synthetic blankets, sweaters, etc. is.
A
nylon
B
teflon
C
orlon
D
bakelite
Question 95Single Answer
The cleaning of dirty clothes by soaps and detergents is deue to a type of molecules called surfactants, which are present in soaps and detergents. The surfactant molecules remove the dirt by.
A
making the cloth slippery
B
producing some gases between the dirt and the cloth
C
dissolving the dirt
D
forming some aggregates of themselves and take away the dirt in the core of the aggregates
Question 96Single Answer
Contact lenses are made from.
A
polyvinyl chloride
B
polystyrene
C
lucite
D
teflon
Question 97Single Answer
On of the occupational health hazards commonly faced by workers of ceramics, pottery and glass industry is.
A
stone formation in gall bladder
B
melanoma
C
silicosis
D
stone formation in kidney
Question 98Single Answer
vermicompost is an/a.
A
inorganic fertilizer
B
toxic substance
C
organic bio fertilizer
D
synthetic fertilizer
Question 99Single Answer
The macro nutrients provided by inorganic fertilizer are.
A
carbon, iron and boron
B
magnesium, manganese and sulphur
C
magnesiu, zinc and iron
D
nitrogen, phosphorus and potassium
Question 100Single Answer
Which one of the following statement is not correct ?
A
Water starts boiling when its vapour pressure becomes equal to amospheric pressure
B
Water is known as universal solvent
C
Permanent hardness of water is due to presence of MgClยญยญ2ยญ,ย CaCl2,ย MgSO4ย and CaSO4
D
Density of ice is greater than that of water
Biology
Question 101Single Answer
Which of the following contain enzymes for cellular respiration ?
A
Dictyosomes
B
Endoplasmic reticulum
C
lysosomes
D
Mitochondria
Question 102Single Answer
Which one among the following nutrients is a strctural
A
Cell membrane
B
Plasma membrane
C
Cell wall
D
Nucleus
Question 103Single Answer
Which one among the following nutrients is a structural component of the cell wall of plants ?
A
Manganese
B
Potassium
C
Phosphorus
D
Calcium
Question 104Single Answer
Which of the following groups is present in animal cells ?
A
Mitochondria, Cell membrane, Cell wall, Cytoplasm
B
Chloroplasts, Cytoplasm, Vacuole, Nucleus
C
Nucleus, Cell membrane, Mitochondria, Cytoplasm
D
Vacuole, cell membrane, Nucleus, Mitochondria
Question 105Single Answer
For which among the following is not a true fruit ?
A
Apple
B
Date
C
Grape
D
Plum
Question 106Single Answer
Which one of the following is not a constituent of cell membrane ?
A
Cholesterol
B
Glycoplids
C
Proline
D
Phospholipids
Question 107Single Answer
The replication of DNA is a pre-requisite for a eukaryotic cell to undergo division. During the cell cycle, the DNA replicates in
A
Sโphase
B
G1โphase
C
G2โphase
D
M-phase
Question 108Single Answer
During which stage of mitosis does cytokinesis usually occur in animals ?
A
Phophase
B
Metaphase
C
Anaphase
D
Telophase
Question 109Single Answer
Lysosome arises from
A
endoplasmic reticulum
B
golgi apparatus
C
nucleus
D
mitochondria
Question 110Single Answer
The correct sequence of cell cycle is
A
S, G1, G2, M
B
S, M, G1, G2
C
G1, S, G2, M
D
M, G1, G2, S
Question 111Single Answer
Biological membranes are composed of
A
40% proteins and 60% lipids
B
50% proteins and 50% lipids
C
70% proteins and 30% lipids
D
60% proteins and 40% lipids
Question 112Single Answer
F1 particles / oxysome / elementary particles are present in
A
endoplasmic reticulum
B
chloroplast
C
mitochondria
D
golgi complex
Question 113Single Answer
"Endomitosis" refers to
A
division of nucleus without chromosomal division
B
division of chromosome without nuclear division
C
division of cytoplasm
D
None of the above
Question 114Single Answer
When the concentration of water and solutes on either side of the cell membrane is same, the solution is said to be
A
hypertonic
B
isotonic
C
hypotonic
D
None of these
Question 115Single Answer
The function of nucleous is the synthesis of
A
DNA
B
m - RNA
C
r- RNA
D
t - RNA
Question 116Single Answer
Mesosome in a bacterial cell is
A
plasmid
B
connection between two cells
C
plasma membrane infolded for respiration
D
None of these
Question 117Single Answer
In living cels synthesis of ribonoucleic acid (RNA) takes place in :
A
Cytoplasm
B
Nucleus
C
Golgi body
D
Nephron
Question 118Single Answer
The cell organelle storing substances like starch, oil and proteins is
A
Vacuole
B
Lysosome
C
Plastid
D
Golgi body
Question 119Single Answer
Organisms lacking nuclear membrane and cell organelles is called as :
A
Prokaryotes
B
Eukaryotes
C
Protozoa
D
Virus
Question 120Single Answer
Cell organelles that are involved in the waste disposal system of the cell are :
A
Golgi apparatus
B
Lysosomes
C
Chromosomes
D
Ribosomes
Question 121Single Answer
Which one of the following is an organelle that is NOT found in prokaryotic cells ?
A
Cell wall
B
Mitochondria
C
Plasma membrane
D
Ribosome
Question 122Single Answer
Which one of the following cell organelles mainly functions as storehouse of digestive enzymes ?
A
Desmosome
B
Ribosome
C
Lysosome
D
Vacuoles
Question 123Single Answer
Cell wall of any fungus is different from plant in having
A
cellulose
B
chitin
C
cholesterol
D
glycogen
Question 124Single Answer
In prokaryotic organisms, nuclear region is not surrounded by a membrane.This undefined nuclear region is known as
A
Nucleic acid
B
Nucleoid
C
Nucleolus
D
Nucleosome
Question 125Single Answer
Which one of the following functions is not carried out by smooth endoplasmic reticulum ?
A
Transport of materials
B
Synthesis of lipid
C
Synthesis of protein
D
Synthesis of steroid hormone
Question 126Single Answer
Which of the following is the cellular respiratory centre ?
A
Nucleus
B
Mitochondria
C
Ribosome
D
Golgi body
Question 127Single Answer
Which one of the following cell organelles contains DNA ?
A
Golgi apparatus
B
Mitochondrion
C
Lysosome
D
Endoplasmic reticulum
Question 128Single Answer
Movement of materials to different parts of cytoplasm and nucleus is generall carried out by
A
Ribosomes
B
Mitochondria
C
Lysosomes
D
Endoplasmic reticulum
Question 129Single Answer
In mitochondria, ATP synthesizing chemical reactions take place in the
A
Outer membrane
B
Matrix
C
Inner membrane
D
DNA of mitochondria
Question 130Single Answer
Cell wall is not present in cells of
A
Bacteria
B
Plants
C
Fungi
D
Humans
Question 131Single Answer
Plant viruses usually contain :
A
RNA
B
DNA
C
DNA and RNA
D
DNA or RNA
Question 132Single Answer
Viruses were discovered by :
A
Stanley
B
Ivanowski
C
Twort
D
Herelle
Question 133Single Answer
Which statement best defines viruses?
A
Acellular infectious agents that replicate only inside living host cells
B
Cellular microorganisms containing only DNA
C
Free-living microorganisms capable of independent metabolism
D
Cellular microorganisms containing only RNA
Question 134Single Answer
Which infectious agents consist essentially of small, naked RNA molecules without a protein coat?
A
Virions
B
Prions
C
Viroids
D
Bacteriophages
Question 135Single Answer
Coliphage f X 174 contains :
A
double stranded RNA
B
single stranded DNA
C
double stranded DNA
D
single stranded RNA
Question 136Single Answer
Viruses differ from living organisms in that, they :
A
can grow inside a living host
B
can multiply inside a living host
C
can undergo mutation inside a living host
D
are non-cellular
Question 137Single Answer
Virus which attacks E.coli is called :
A
bacteriophage
B
coliphage
C
phytophage
D
zoophage
Question 138Single Answer
Which characteristic distinguishes viruses from cellular organisms?
A
They possess ribosomes for protein synthesis
B
They have independent energy metabolism
C
They are acellular and depend on host cells for replication
D
They reproduce by binary fission
Question 139Single Answer
The genome of a temperate bacteriophage integrated into the bacterial chromosome is termed as?
A
Prophage
B
Episome
C
Plasmid
D
Capsomere
Question 140Single Answer
Virus was crystallized and isolated first by :
A
J.D. Ivanowski
B
F.C. Bawden
C
W.M. Stanley
D
K.M. Smith
Question 141Single Answer
Little leaf disease of brinjal is primarily associated with which pathogen?
A
Phytoplasma
B
Begomovirus
C
Fungus
D
Viroid
Question 142Single Answer
Which approximate size range includes many of the smallest known conventional virus particles?
A
20โ30 nm
B
100โ150 nm
C
500โ700 nm
D
1โ2 ยตm
Question 143Single Answer
Which of the following is devoid of protein coat, with a constitution of RNA only ?
A
Tobacco mosaic virus
B
Poxvirus
C
Potato spindle tuber virus
D
None of the above
Question 144Single Answer
Genetic modification brought about by a virus in a bacteria is known as :
A
transformation
B
transduction
C
conjugation
D
candidiasis
Question 145Single Answer
Which property makes the classification of viruses as strictly living or non-living problematic?
A
They reproduce independently outside cells
B
They possess cellular organelles but lack DNA
C
They replicate in host cells but are metabolically inactive outside them
D
They perform independent respiration outside host cells
Question 146Single Answer
Influenza viruses contain which type of genetic material?
A
Double-stranded DNA
B
Single-stranded RNA
C
Single-stranded DNA
D
Double-stranded RNA
Question 147Single Answer
Edward Jenner is best known for pioneering vaccination against which disease?
A
Smallpox
B
Chickenpox
C
Rabies
D
Poliomyelitis
Question 148Single Answer
Roux Sarcoma virus contains :
A
RNA
B
DNA
C
DNA and RNA
D
None of these
Question 149Single Answer
Which of the following is a viral disease of potato ?
A
Early blight of potato
B
Late blight of potato
C
Leaf roll of potato
D
None of the above
Question 150Single Answer
The term Virus' has been derived from a Latin word meaning :