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 –1]
B
[MLT²]
C
[MT–2]
D
[ML–1T–3]
Question 4Single Answer
Potential is measured in
A
joule/coulomb
B
watt/coulomb
C
newton–second
D
None of these
Question 5Single Answer
One Nanometer is equal to
A
10–9m
B
10–6m
C
10–10m
D
10–3m
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 A–1 m–1
B
Wb–1 Am
C
Wb A m–1
D
Wb A–1 m
Question 9Single Answer
The dimensions of pressure gradient are
A
[ML–2 T–2]
B
[ML–2 T–1]
C
[ML–1 T–1]
D
[ML–1 T–2]
Question 10Single Answer
The dimensions of Rydberg's constant are
A
[M0L–1T]
B
[MLT–1]
C
[M0 L–1T0]
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/m²
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
[L² M¹ T–2 K–1]
B
[L¹ M² T–2 K–1]
C
[L¹ M¹ T–2 K–1]
D
[L² M² T–2 K–1]
Question 19Single Answer
The dimensions of magnetic moment are
A
[L²A¹]
B
[L²A–1]
C
[L²/A³]
D
[LA²]
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
[M0L0T–1]
B
[M0L–1T0]
C
[M–1 L–1 T0]
D
[M0 L0 T0]
Question 22Single Answer
The dimensional of Hubble ‘s wave number is
A
[T–1]
B
[M0L0T–2]
C
[MLT4]
D
[MT–1]
Question 23Single Answer
The dimensions of solar constant is
A
[M0L0T0]
B
[MLT–2]
C
[ML²T–2]
D
MT–3
Question 24Single Answer
The dimensional formula for entropy is
A
[MLT–2K¹]
B
[ML2 T-2]
C
[ML²T–2K–1]
D
[ML²T–2K]
Question 25Single Answer
Dimension of specific heat are
A
[ML² T–2 K]
B
[ML² T–2 K–1]
C
[ML²T²K–1]
D
[L²T–2K–2]
Question 26Single Answer
The physical quantity which has the dimensional formula [M¹T–3] 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
10–7 cm
B
10–6 cm
C
10–4 cm
D
10–3 cm
Question 29Single Answer
What is the unit of pressure ?
A
Newton/sq. meter
B
Newton–meter
C
Newton
D
Newton/meter
Question 30Single Answer
The unit of pressure is
A
kg/cm²
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
MLT–2K
B
MLT–2K–2
C
MLT–3K
D
MLT–3K–1
Question 33Single Answer
Which of the following is the unit of molar gas constant ?
A
JK–1 mol–1
B
Joule
C
JK–1
D
J mol–1
Question 34Single Answer
Density of liquid is 16.8 g cm–3. Its value in the International System of Units is
A
16.8 kgm–3
B
168 kgm–3
C
1680 kgm–3
D
16800 kgm–3
Question 35Single Answer
The dimensional formula of couple is
A
[ML² T–2]
B
[MLT²]
C
[ML–1T–3]
D
[ML–2T–2]
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 × 10¹ m
C
2×10²m
D
data is inadequate
Question 40Single Answer
The area of a square is 5.29 cm². The area of 7 such square taking into account the significant figures is:
A
37cm²
B
37.030 cm²
C
37.03 cm²
D
37.0 cm²
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
Am²
B
Am
C
Am–1
D
Am–2
Question 43Single Answer
Which is dimensionless ?
A
Force/acceleration
B
Velocity/accerleration
C
Volume/area
D
Energy/work
Question 44Single Answer
The expression [ML–1T–2] does not represent
A
pressure
B
power
C
Stress
D
Young's modulus
Question 45Single Answer
The dimensional formul of current density is
A
[M0L–2T–1Q]
B
[M0L2T1Q–1]
C
[MLT–1Q]
D
[ML–2T–1Q²]
Chemistry
Question 46Single Answer
Which of the following is not a synthetic fibre:
A
Anygora
B
Rayon
C
Nylon
D
Polyster
Question 47Single Answer
Which one of the following is not contained in Portland cement ?
A
Ca3Al2O6
B
Ca3SiO5
C
Ca2SiO4
D
Ca3(PO4)2
Question 48Single 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 49Single Answer
Which fertilizer is assimilated directly by the plant ?
A
Super phosphate
B
Nitrolim
C
Muriate of Potash
D
Humus
Question 50Single Answer
Which of the following chemicals is used in foam fire extinguishers ?
A
Aluminium sulphate
B
Copper sulphate
C
Cobalt sulphate
D
Nickel sulphate
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Chemistry
Question 51Single Answer
What is a mixture of potassium nitrate, powdered charcoal and sulphur called ?
A
Glass
B
Cement
C
paint
D
Gun powder
Question 52Single Answer
Which one of the following chemicals is used in beauty parlours for hair – setting ?
A
Sulphur based
B
Phosphorus based
C
Silicon based
D
Iron based
Question 53Single 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 54Single 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 55Single Answer
Which one of the following polymeric materials is used for making bullet proof jacket ?
A
Nylon –6, 6
B
Rayon
C
Kevlar
D
Dacron
Question 56Single Answer
Which one of the following is another name of RDX
A
Cyanohydrin
B
Dextran
C
Cyclohexane
D
Cyclonite
Question 57Single Answer
Which one of the following is used as an explosive ?
A
Phosphorus trichloride
B
Mercuric oxide
C
Graphite
D
Nitroglycerine
Question 58Single 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 59Single 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 60Single Answer
Which one of the following is not used as fertilizer ?
A
Ammonium nitrate
B
Ammonium sulphide
C
Ammonium phosphate
D
Ammonium sulphate
Question 61Single 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 62Single 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 63Single 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 64Single Answer
A complete fertilizer provides
A
N,P, K
B
S, K, N
C
S, B, K
D
N, S, P
Question 65Single Answer
Antacids are commonly used to get rid of acidity in the Stomach. A commonly used antacid is.
A
sodium hydrogen phthalate
B
magnesium hydroxide
C
calcium hydroxide
D
manganese acetate
Question 66Single 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 67Single Answer
Petrochemicals are obtained from.
A
coal
B
petroleum
C
coal tar
D
All of these
Question 68Single Answer
The use of chemicals for treatment of diseases is called as.
A
isothermotherapy
B
angiotherapy
C
physiotherapy
D
chemotherapy
Question 69Single Answer
Which of the following is a hypnotic drug ?
A
luminal
B
salol
C
catechol
D
chemisol
Question 70Single Answer
Teflon is a polymer of which of the following monomers ?
A
Tetrafluoroethylene
B
Vinyl chloride
C
Acetylene dichloride
D
None of the above/More than one of the above
Question 71Single Answer
LPG used as domestic fuel chiefly contains–
A
Methane
B
Propane
C
Ethylene
D
Butane
E
None of the above/More than one of the above
Question 72Single Answer
Glass is a.
A
liquid
B
colloid
C
non–crystalline amorphous solid
D
crystalline solid
Question 73Single Answer
Which one of the following acids is used for etching glass ?
A
H2SO4
B
HNO3
C
HF
D
HCI
Question 74Single Answer
What is the purpose of adding plasticizers in paint manufacturing process ?
A
They act as a film–forming 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 75Single 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, PbO
Question 76Single Answer
What is the composition of nitrolim – a chemical fertilizer ?
A
Nitrogen and limestone
B
Calcium carbide and nitrogen
C
Calcium carbide and carbon
D
None of above
Question 77Single 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 78Single 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 79Single 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 80Single Answer
Given below are two statements :
Statement I : Coal–based thermal power stations contribute to acid–rain.
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 81Single Answer
Terfenadine is commonly used as a/an.
A
transquilizer
B
antihistamine
C
antimicrobial
D
antibiotic
Question 82Single Answer
Which one of the following is not a tranqualizer ?
A
Equanil
B
Veronal
C
Salvarsan
D
Serotonin
Question 83Single Answer
Barbituric acid and its derivatives are well known.
A
antipyretics
B
analgesics
C
antiseptics
D
tranquilizers
Question 84Single Answer
Which one among is not an analgesic ?
A
Ibuprofen
B
Naproxen
C
Aspirin
D
Valium
Question 85Single Answer
Various phenol derivatives, tincture of iodine (2 – 3%) I 2 in (water/alcohol) and some dyes like methylene blue are.
A
antiseptics
B
disinfectants
C
analgesics
D
antipyretics
Question 86Single Answer
Commonly used antiseptics 'Dettol' is a mixture of.
A
o–chlorophenozylenol + terpeneol
B
o–cresol + terpeneol
C
phenol + terpeneol
D
chloroxylenol + terpeneol
Question 87Single Answer
Which of the following is not an antiseptic drug ?
A
Iodoform
B
Dettol
C
Gammexene
D
Genatian violet
Question 88Single Answer
Which one of the following substances is made from natural raw materials ?
A
Rayon
B
Nylon
C
Polyster
D
Polystyrene
Question 89Single 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 90Single 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
Biology
Question 91Single Answer
Which of the following contain enzymes for cellular respiration ?
A
Dictyosomes
B
Endoplasmic reticulum
C
lysosomes
D
Mitochondria
Question 92Single Answer
Which one among the following nutrients is a strctural
A
Cell membrane
B
Plasma membrane
C
Cell wall
D
Nucleus
Question 93Single 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 94Single 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 95Single Answer
For which among the following is not a true fruit ?
A
Apple
B
Date
C
Grape
D
Plum
Question 96Single Answer
Which one of the following is not a constituent of cell membrane ?
A
Cholesterol
B
Glycoplids
C
Proline
D
Phospholipids
Question 97Single 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
S–phase
B
G1–phase
C
G2–phase
D
M-phase
Question 98Single Answer
During which stage of mitosis does cytokinesis usually occur in animals ?
A
Phophase
B
Metaphase
C
Anaphase
D
Telophase
Question 99Single Answer
Lysosome arises from
A
endoplasmic reticulum
B
golgi apparatus
C
nucleus
D
mitochondria
Question 100Single 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 101Single 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 102Single Answer
F1 particles / oxysome / elementary particles are present in
A
endoplasmic reticulum
B
chloroplast
C
mitochondria
D
golgi complex
Question 103Single 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 104Single 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 105Single Answer
The function of nucleous is the synthesis of
A
DNA
B
m - RNA
C
r- RNA
D
t - RNA
Question 106Single 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 107Single Answer
In living cels synthesis of ribonoucleic acid (RNA) takes place in :
A
Cytoplasm
B
Nucleus
C
Golgi body
D
Nephron
Question 108Single Answer
The cell organelle storing substances like starch, oil and proteins is
A
Vacuole
B
Lysosome
C
Plastid
D
Golgi body
Question 109Single Answer
Organisms lacking nuclear membrane and cell organelles is called as :
A
Prokaryotes
B
Eukaryotes
C
Protozoa
D
Virus
Question 110Single 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 111Single 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 112Single Answer
Which one of the following cell organelles mainly functions as storehouse of digestive enzymes ?
A
Desmosome
B
Ribosome
C
Lysosome
D
Vacuoles
Question 113Single Answer
Cell wall of any fungus is different from plant in having
A
cellulose
B
chitin
C
cholesterol
D
glycogen
Question 114Single 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 115Single 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 116Single Answer
Which of the following is the cellular respiratory centre ?
A
Nucleus
B
Mitochondria
C
Ribosome
D
Golgi body
Question 117Single Answer
Which one of the following cell organelles contains DNA ?
A
Golgi apparatus
B
Mitochondrion
C
Lysosome
D
Endoplasmic reticulum
Question 118Single 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 119Single Answer
In mitochondria, ATP synthesizing chemical reactions take place in the
A
Outer membrane
B
Matrix
C
Inner membrane
D
DNA of mitochondria
Question 120Single Answer
Cell wall is not present in cells of
A
Bacteria
B
Plants
C
Fungi
D
Humans
Question 121Single Answer
Which cell organelles have their own DNA and Ribosomes ?
A
Golgi body and Endoplasmic Reticulum
B
Mitochondria and Plastids
C
Lysosome and Golgi body
D
Vacuole and Plastids
Question 122Single Answer
Osmosis is the process of movement of water molecules from its
A
higher concentration to its lower concentration through a cell wall
B
lower concentration to its higher concentration through a fully permeable membrane
C
higher concentration to its lower concentration through a fully permeable membrane
D
higher concentration to its lower concentration through a semi - permeable membrane
Question 123Single Answer
Cell were first discovered by
A
Robert Hooke
B
Leeuwenhoek
C
Purkinje
D
Virchow
Question 124Single Answer
The plasma membrane is
A
permeable
B
impermeable
C
selectively permeable
D
both (a) and (b)
Question 125Single Answer
Nuclear material without cover is found in
A
mycoplasma and green algae
B
bacteria and fungi
C
bacteria and blue green algae
D
none of the above
Question 126Single Answer
The work 'prokaryote' means a cell
A
with many nuclei
B
with one nucleus
C
with diffused nucleus
D
without chloroplast
Question 127Single Answer
Minute structures on bacterial cell are called
A
hair
B
cilia
C
flagella
D
pili
Question 128Single Answer
Cell theory was proposed by
A
Schleiden and Schwann
B
Robert Brown
C
Leeuwenhoek
D
Purkinje
Question 129Single Answer
The undefined nuclear region in a bacteria is
A
nucleoid
B
nucleus
C
chromosome
D
nucleolus
Question 130Single Answer
Nucleus plays a crucial part in
A
metabolism
B
cellular reproduction
C
lipid synthesis
D
protein synthesis
Question 131Single Answer
Which of the following is not present in prokaryotes ?
A
Ribosomes
B
Cell wall
C
Plasma membrane
D
Nuclear membrane
Question 132Single Answer
Chemical nature of carrier molecules facilitating transport across plasma membrane is
A
starchy
B
sugary
C
proteinaceous
D
fatty acidic
Question 133Single Answer
ER remains associated with
A
dictyosomes
B
mitochondria
C
karyotheca
D
chloroplast
Question 134Single Answer
Vacuole is surrounded by
A
plasmalemma
B
cell wall
C
tonoplast
D
plasmodesmata
Question 135Single Answer
The organisms that lack membranes are
A
Viruses
B
Bacteria
C
protozoans
D
Fungi
Question 136Single Answer
The organelle attached to the ER is
A
ribosomes
B
lysosomes
C
golgi bodies
D
proteins
Question 137Single Answer
Golgi bodies help in
A
excertion of steroids
B
storage and secretion
C
translation
D
trnascription
Question 138Single Answer
According to fluid mosaic model plasma membrane is composed of
A
phospholipids, extrinsic and intrinsic proteins
B
phospholipids and oligosaccharides
C
phospholipids and hemicellulose
D
phospholipids and integral glycoproteins
Question 139Single Answer
The presence of .............. organelle is only revealed by electron microscope .
A
chloroplast
B
mitochondria
C
Golgi bodies
D
lysosome
Question 140Single Answer
One of these is the smallest in size
A
Ribosome
B
Lysosome
C
Mitochondria
D
Chloroplast
Question 141Single Answer
The SER helps in building the cell membrane. This process is called
A
protein synthesis
B
membrane abiogenesis
C
membrane biogenesis
D
glycogenesis
Question 142Single Answer
Golgi apparatus is involved in the formation of :
A
lysosome
B
vacuoles
C
plastids
D
mitochondria
Question 143Single Answer
DNA is a component of
A
mitochondria
B
chloroplast
C
cytoplasm
D
(a) and (b) both
Question 144Single Answer
One of these is double membrane organelle
A
lysosome
B
mitochondria
C
nucleus
D
endoplasmic reticulum
Question 145Single Answer
The cell organelle containing the flatterned membrane bounded cisternae are located near the nucleus is
A
mitochondria
B
Golgi
C
centioles
D
nucleous
Question 146Single Answer
The entry of mineral ions in a plant cell during absorption is
A
passive absorption
B
active absorption
C
osmosis
D
encocytosis
Question 147Single Answer
The suicide bags of the cells are
A
mitochondria
B
plastids
C
golgi complex
D
ribosomes
Question 148Single Answer
When gene targeting involving gene amplification is attempted in a person’s tissue to treat disease, it is known as :
A
Safety testing
B
Biopiracy
C
Gene therapy
D
Molecular diagnosis
Question 149Single Answer
Vesicles are essential for the normal functioning of the golgi apparatus because
A
they provide energy for chemical reactions
B
they move proteins and lipids between different parts of the organelle
C
they contribute to the structural integrity of the organelle
D
they produce the sugars that are aded to proteins
Question 150Single Answer
Amino Acid chains built by the ribosomes then move to the
A
golgie apparatus
B
lysosome
C
endoplasmic reticulum
D
mitochondria
Question 151Single Answer
Simple tissues are
A
parenchyma, xylem and collenchyma
B
parenchyma, collenchyma and collenchyma
C
parenchyma, collecnhyma and sclerenchyma
D
parenchyma, xylem and phloem
Question 152Single Answer
The living cells providing tensile strength are
A
parenchyma
B
collenchyma
C
sclerenchyma
D
sclerotic cells
Question 153Single Answer
The energy currency of the cell is
A
ADP
B
ATP
C
NADP
D
FADP
Question 154Single Answer
Consider the following statement and choose the correct code .
Assertion (A) : A true nucleus is absent in E. coli and other prokaryotes.
Reason (R) : An undifferentiated, unorganised filbrillar chromosome exists inside the prokayotic cells.
Code :
A
Both (A) and (R) are true and (R) is the correct explanation of (A)
B
Both (A) and (R) are true, but (R) is not the correct explanation of (A)
C
(A) is true, but (R) is false
D
(A) is false, but (R) is true
Question 155Single Answer
Match List – I with List – II and select the correct answer by using the codes given below :
List I List II
A. Ribosome 1. Suidical bag of cell
B. lysosome 2. Protein factory of cells
C. Mitochondria 3. Controller of cell
D. Nucleus 4. Power house of cell
Code :
A B C D
A
2 1 4 3
B
4 3 2 1
C
1 4 2 1
D
3 2 1 4
Question 156Single Answer
Which of the following is the correct sequence of the different phase of cell division ?
1. Anaphase
2. Telophase
3. Prophase
4. Metaphase
Code :
A
1 2 3 4
B
1 3 2 4
C
3 1 4 2
D
3 4 1 2
Question 157Single Answer
Match List – I with List – II and select the correct answer by using the codes given below :
List - I List - II
(physiological processes) (Cell organelles)
A. Photosynthesis 1.Plasma membrane
B. Mineral uptake 2. Chloroplast
C. Respiration 3. Mitochondria
D. Protein synthesis 4. Ribosomes
Code :
A B C D
A
1 2 3 4
B
1 2 4 3
C
2 1 3 4
D
2 1 4 3
Question 158Single Answer
Which of the following is not a true statement about chloroplast and mitochondria ?
A
Each contains a small amount of DNA
B
Neither are componmnents of the endomembrane system
C
Both are membrane less organelles
D
Mitochondria do not synthesise all their proteins
Question 159Single Answer
With reference to the animal cell, which of the following statement are correct ?
1. There is no cell wall in animal cell but the cell is coveredby plasma membrane.
2. Chlorophyll is not found in animal cells.
3. Lysosome occurs in plant cells.
4. Almost in all animal cells, centioles exist.
A
2 and 3 only
B
1, 2 and 3 only
C
1, 2 and 4
D
All of the above
Question 160Single Answer
Consider the following statements rearding osmosis in animal cells :
1. If the water potential of the solution surrounding the cell is o high, the cell shrinks.
2. If the water potential of the solution surrounding the cell is too low, the cell swells and bursts.
3. It is important to maintain a constant water potential inside the animal body.
4. In animal cells, water potential far exceeds the solute potential.
Which of the statements given above is /are correct ?
A
1 and 2
B
3 only
C
4 only
D
2 and 3
Question 161Single Answer
What is common to the following plants: Nepenthes, Psilotum, Rauwolfia and Aconitum ?
A
All are ornamental plants
B
All are phylogenic link species
C
All are prone to over exploitation
D
All are exclusively present in the Eastern Himalayas
Question 162Single Answer
Among the ecosystem mentioned below, where can one find maximum biodiversity ?
A
Mangroves
B
Desert
C
Coral reefs
D
Alpine meadows
Question 163Single Answer
Endemism refers to :
A
The distribution of species at a cosmopolitan distribution
B
Distribution of certain species in a restricted area
C
A common feature of all organisms seen in the biosphere
D
A and B are correct
Question 164Single Answer
Which one of the following is an endangered plant species of India ?
A
Rauwolfia serpentina
B
Santalum album (Sandal wood)
C
Cycas beddonei
D
All of the
Question 165Single Answer
Which of the following is a hot-spot of biodiversity in India ?
A
Western Ghats
B
Indo-gangetic plain
C
Eastern Ghats
D
Aravalli Hills
Question 166Single Answer
Hot spots are places of :
A
High degree of species richness
B
High degree of habitat loss
C
High degree of endemism
D
All the above
Question 167Single Answer
The most important cause of extinction of animals and plants, especially in tropical rain forests is :
A
Habitat loss
B
Afforestation
C
Pollution
D
Soil erosion
Question 168Single Answer
Which among the following is not a method of in-situ conservation ?
A
National Park
B
Botanical garden
C
Wildlife sanctuary
D
Ramsar sites
Question 169Single Answer
The active chemical drug reserpine is obtained from :
A
Datura
B
Rauwolfia
C
Papaver
D
Papaver
Question 170Single Answer
The one-horned rhinoceros is specific to which of the following sanctuary :
A
Bhitar Kanika
B
Bandipur
C
Kaziranga
D
Corbett park
Question 171Single Answer
Which one is known as the lungs of the planet ?
A
Amazon rain forest
B
All tropic rain forest
C
All producers
D
Deciduous forest
Question 172Single Answer
The extinction of passenger pigeon was due to :
A
Increased number of predatory birds
B
Over exploitation by humans
C
Non-availability of the food
D
Bird flu virus infection
Question 173Single Answer
Which of the following countries has the highest biodiversity ?
A
Brazil
B
South Africa
C
Russia
D
India
Question 174Single Answer
Reserpine is obtained from :
A
Rauwolfia vomitoria
B
Cinchona officinalis
C
Taxus brevifolia
D
Catheranthus roseus
Question 175Single Answer
Amongst the animal groups given below, which one has the highest percentage of endangered species ?
A
Insects
B
Mammals
C
Amphibians
D
Reptiles
Question 176Single Answer
The Earth Summit (1992) was held at :
A
Johannesburg
B
South Africa
C
Rio de Janeiro
D
Japan
Question 177Single Answer
From his long term ecosystem experiments, David Tilman showed that
A
Decreased diversity contributed to higher productivity
B
Decreased diversity contributed to decreased productivity
C
Increased diversity contributed to increased productivity
D
Increased diversity contributed to decreased productivity
Question 178Single Answer
(logtext{S}=logtext{C}+text{Z}logtext{A})
In the given equation of species-area relationship, the value of regression coefficient for a whole continent, would be
A
0.1-0.2
B
0.5-0.7
C
0.6-1.2
D
0.3-0.5
Question 179Single Answer
Which of the following organisation is responsible for maintaining the Red Data Book ?
A
IDRI
B
IUCN
C
UNESCO
D
USDA
Question 180Single Answer
Which of the following group of plants exhibit more species diversity ?