General Science
Two objects of different masses falling freely
Two objects of different masses falling freely near the surface of moon would
- have same velocities at any instant
- have different accelerations
- experience forces of same magnitude
- undergo a change in their inertia
Rocket works on the principle of conservation of
Rocket works on the principle of conservation of
- mass
- energy
- momentum
- velocity
An object of mass 2 kg is sliding with a constant velocity of 4 m/s
An object of mass 2 kg is sliding with a constant velocity of 4 m s–1 on a frictionless horizontal table. The force required to keep the object moving with the same velocity is
- 32 N
- 0 N
- 2 N
- 8 N
A passenger in a moving train tosses a coin which falls behind him
A passenger in a moving train tosses a coin which falls behind him. It means that motion of the train is
- accelerated
- uniform
- retarded
- along circular tracks
The inertia of an object tends to cause the object
The inertia of an object tends to cause the object
- to increase its speed
- to decrease its speed
- to resist any change in its state of motion
- to decelerate due to friction
A goalkeeper in a game of football pulls his hands backwards after holding the ball
A goalkeeper in a game of football pulls his hands backwards after holding the ball shot at the goal. This enables the goal keeper to
- exert larger force on the ball
- reduce the force exerted by the ball on hands
- increase the rate of change of momentum
- decrease the rate of change of momentum
Slope of a velocity - time graph gives
Slope of a velocity – time graph gives
- the distance
- the displacement
- the acceleration
- the speed
Which figures represents uniform motion of a moving object
Which of the following figures represents uniform motion of a moving object correctly?
Suppose a boy is enjoying a ride on a merry-go-round
Suppose a boy is enjoying a ride on a merry-go-round which is moving with a constant speed of 10 m s–1. It implies that the boy is
- at rest
- moving with no acceleration
- in accelerated motion
- moving with uniform velocity
From the given v–t graph, it can be inferred that the object is
From the given v – t graph, it can be inferred that the object is
- in uniform motion
- at rest
- in non-uniform motion
- moving with uniform acceleration
If the displacement of an object is proportional to square of time
If the displacement of an object is proportional to square of time, then the object moves with
- uniform velocity
- uniform acceleration
- increasing acceleration
- decreasing acceleration
A body is thrown vertically upward with velocity u
A body is thrown vertically upward with velocity u, the greatest height h to which it will rise is
- u/g
- u2/2g
- u2/g
- u/2g
Well defined nucleus is absent in
Well defined nucleus is absent in
- blue green algae
- diatoms
- algae
- yeast
In taxonomic hierarchy family comes between
In taxonomic hierarchy family comes between
- Class and Order
- Order and Genus
- Genus and Species
- Division and Class
Real organs are absent in
Real organs are absent in
- Mollusca
- Coelenterata
- Arthropoda
- Echinodermata
Corals are
Corals are
- Poriferans attached to some solid support
- Cnidarians, that are solitary living
- Poriferans present at the sea bed
- Cnidarians that live in colonies
The locomotory organs of Echinodermata are
The locomotory organs of Echinodermata are
- tube feet
- muscular feet
- jointed legs
- parapodia
Organisms without nucleus and cell organelles belong to
Organisms without nucleus and cell organelles belong to
- fungi
- protista
- cyano bacteria
- archae bacteria
Select the correct option:
- (i) and (ii)
- (iii) and (iv)
- (i) and (iv)
- (ii) and (iii)
Which among the following have scales
Which among the following have scales?
- Amphibians
- Pisces
- Reptiles
- Mammals
Select the correct option:
- (i) and (iii)
- (iii) and (iv)
- (ii) and (iii)
- (i) and (ii)
Elephantiasis is caused by
Elephantiasis is caused by
- Wuchereria
- Pinworm
- Planarians
- Liver flukes
Which one is a true fish
Which one is a true fish?
- Jellyfish
- Starfish
- Dogfish
- Silverfish
Which has specialised tissue for conduction of water
Which among the following has specialised tissue for conduction of water?
- Thallophyta
- Bryophyta
- Pteridophyta
- Gymnosperms
Select the correct option:
- (i) and (ii)
- (ii) and (iii)
- (iii) and (iv)
- (i) and (iv)
The water conducting tissue generally present in gymnosperm is
The water conducting tissue generally present in gymnosperm is
- vessels
- sieve tube
- tracheids
- xylem fibres
Cork cells are made impervious to water and gases by the presence of
Cork cells are made impervious to water and gases by the presence of
- cellulose
- lipids
- suberin
- lignin
Flexibility in plants is due to
Flexibility in plants is due to
- collenchyma
- sclerenchyma
- parenchyma
- chlorenchyma
Which does not lose their nucleus at maturity
Which of the following does not lose their nucleus at maturity?
- Companion cells
- Red blood cells
- Vessel
- Sieve tube cells
The dead element present in the phloem is
The dead element present in the phloem is
- companion cells
- phloem fibres
- phloem parenchyma
- sieve tubes
Which cells is found in the cartilaginous tissue
Which of the following cells is found in the cartilaginous tissue of the body?
- Mast cells
- Basophils
- Osteocytes
- Chondrocytes
The muscular tissue which function throughout the life continuously
The muscular tissue which function throughout the life continuously without fatigue is
- skeletal muscle
- cardiac muscle
- smooth muscle
- voluntary muscle
Which helps in repair of tissue and fills up the space inside the organ
Which of the following helps in repair of tissue and fills up the space inside the organ?
- Tendon
- Adipose tissue
- Areolar
- Cartilage
Nerve cell does not contain
Nerve cell does not contain
- axon
- nerve endings
- tendons
- dendrites
Nervous tissue is not found in
Nervous tissue is not found in
- brain
- spinal cord
- tendons
- nerves
Voluntary muscles are found in
Voluntary muscles are found in
- alimentary canal
- limbs
- iris of the eye
- bronchi of lungs
Contractile proteins are found in
Contractile proteins are found in
- bones
- blood
- muscles
- cartilage
Bone matrix is rich in
Bone matrix is rich in
- fluoride and calcium
- calcium and phosphorus
- calcium and potassium
- phosphorus and potassium
Fats are stored in human body as
Fats are stored in human body as
- cuboidal epithelium
- adipose tissue
- bones
- cartilage
Meristematic tissues in plants are
Meristematic tissues in plants are
- localised and permanent
- not limited to certain regions
- localised and dividing cells
- growing in volume
Which muscles act involuntarily
Which muscles act involuntarily?
- Striated muscles
- Smooth muscles
- Cardiac muscles
- Skeletal muslces
Select the correct option:
- (i) and (ii)
- (ii) and (iii)
- (iii) and (iv)
- (i) and (iv)
Intestine absorb the digested food materials. What type of epithelial cells
Intestine absorb the digested food materials. What type of epithelial cells are responsible for that?
- Stratified squamous epithelium
- Columnar epithelium
- Spindle fibres
- Cuboidal epithelium
Which cell does not have perforated cell wall
Which cell does not have perforated cell wall?
- Tracheids
- Companion cells
- Sieve tubes
- Vessels
Girth of stem increases due to
Girth of stem increases due to
- apical meristem
- lateral meristem
- intercalary meristem
- vertical meristem
Which of the following tissues has dead cells
Which of the following tissues has dead cells?
- Parenchyma
- Sclerenchyma
- Collenchyma
- Epithelial tissue
Living cells were discovered by
Living cells were discovered by
- Robert Hooke
- Purkinje
- Leeuwenhoek
- Robert Brown
Organelle without a cell membrane is
Organelle without a cell membrane is
- ribosome
- golgi apparatus
- chloroplast
- nucleus
The only cell organelle seen in prokaryotic cell is
The only cell organelle seen in prokaryotic cell is
- mitochondria
- ribosomes
- plastids
- lysosomes
Cell theory was given by
Cell theory was given by
- Schleiden and Schwann
- Virchow
- Hooke
- Haeckel
Cell arises from pre-existing cell was stated by
Cell arises from pre-existing cell was stated by
- Haeckel
- Virchow
- Hooke
- Schleiden
Lipid molecules in the cell are sythesized by
Lipid molecules in the cell are sythesized by
- smooth endoplasmic reticulum
- rough endoplasmic reticulum
- golgi apparatus
- plastids
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