Sense Organs Class 10 ICSE Biology MCQ Questions
sense organs mcq question and answers
Looking for Sense Organs Class 10 ICSE Biology Chapter 11 MCQ Questions? If yes, You are the right page. Here we have provided ICSE class 10 biology Chapter 11 multiple choice questions and answers. All MCQ are important.
( I ) Choose the best answer
( 1 ) The sense organs performs a very essential functions in our life . What are it’s major functions ?
a ) It creates awareness about the internal as well as external conditions of our environment
b ) It increases awareness about the internal conditions of our environment
c ) It helps to enhance awareness about the external conditions of our environment
d ) None of the above
Answer : a ) It creates awareness about the internal as well as external conditions of our environment
( 2 ) The eyes , ears , tongue , nose and skin representssome of the crucial
a ) Receptors b ) Lubricant
c ) Sense organs d ) Lysozyme
Answer :c ) Sense organs
( 3 ) When any specialised cell or tissue depicts sensation towards a particular stimulus , then it is known as
a ) Effector b ) Receptors
c ) Enzyme d ) Neuron
Answer : b ) Receptors
( 4 ) Which one of the following receptors is responsible for hearing / sound ?
a ) Mechanoreceptors b ) Chemoreceptors
c ) Photoreceptors d ) Phonoreceptors
Answer : d ) Phonoreceptors
( 5 ) Tears plays a very important role in
a ) Lubricating the layer of the eye , rinsing away dust particles b ) Aids in destroying germs
c ) Transmitting emotions d ) All of the above
Answer : d ) All of the above
( 6 ) Conjunctivitis serves as one of the most appropriate example of
a ) Skin disease b ) Lung disease
c ) Eye disease d ) Bone disease
Answer : c ) Eye disease
( 7 ) There are three concentric layers which contributes in the composition of the wall of the eyeball . What are the three concentric layers ?
a ) Outer sclerotic , middle choroid and inner retina
b ) Inner retina , middle choroid and eyelids
c ) Outer sclerotic, tear ducts and orbits
d ) Lacrimal sac , Lysozyme and lubricant
Answer : a ) Outer sclerotic , middle choroid and inner retina
( 8 ) The melanin is contained in which layer of the eyeball thatrenders support in averting rays of light that are scattered and reflected within the eye ?
a ) Sclerotic layer b ) Choroid layer
c ) Retina d ) Lens
Answer :b ) Choroid layer
( 9 ) The name pupil comes from the latin word “pupa” which literally means
a ) Bigger image b ) Doll
c ) Scattered image d ) Hazy image
Answer : b ) Doll
( 10 ) Rods and cones are two kinds of sense cells that are contained in the
a ) Cornea b ) Pupil
c ) Iris d ) Retina
Answer : d ) Retina
( 11 ) The cones not only depicts extreme sensation towards radiant light but are also accountable for
a ) Colour blindness b ) Haemophilia
c ) Colour vision d ) Dyslexia
Answer : c ) Colour vision
( 12 ) Which one of the following acts as the perfect place for the most suitable vision of the normal eye ?
a ) Yellow spot b ) Blind spot
c ) Green spot d ) Red spot
Answer : a ) Yellow spot
( 13 ) Which area usuallylacks sensory cells and does not depict any vision ?
a ) Cones b ) Blind spot
c ) Rods d ) Yellow spot
Answer : b ) Blind spot
( 14 ) Aqueous and vitreous chambers falls under the realm of two chambers of the
a ) Brain b ) Heart
c ) Kidney d ) Eye
Answer : d ) Eye
( 15 ) The front chamber which lies in the middle of the lens and the cornea is known by the term of
a ) Vitreous chamber b ) Posterior chamber
c ) Aqueous chamber d ) None of the above
Answer : c ) Aqueous chamber
( 16 ) There are two essential functions that are served by the aqueous humour. What are the two major functions?
a ) It helps in retaining the moisture content of the lens and renders safeguard from physical shock , It also contributes in refracting light
b ) It washes away impurities from the eye and helps in reflecting light
c ) It protects the eye from both internal as well as external shocks and it also helps in renouncing moisture content of the lens
d ) All of the above
Answer : a ) It helps in retaining the moisture content of the lens and renders safeguard from physical shock , It also contributes in refracting light
( 17 ) The term “ vitreous humour” mainly refers to
a ) The filling of vitreous chamber with extremely thin fluid
b ) The absorption of thicker fluid from vitreous chamber
c ) The filling of vitreous chamber with translucent viscous fluid
d ) None of the above
Answer : c ) The filling of vitreous chamber with translucent viscous fluid
( 18 )There are four crucial steps involved for the purpose of perceiving an object . What are the four central steps ?
a ) Availability of light , proper vision , targeting on image and interpretation by the brain
b ) Entry of light rays , focusing on image , transmission of nerve impulse from retina to brain and interpretation by the brain
c ) Efficient vision , presence of light, brains ability to interpret and effective functioning of nerve impulse
d ) Clear vision , scope of light , pointing on objects and proper regulation of nerve impulse
Answer : b ) Entry of light rays , focusing on image , transmission of nerve impulse from retina to brain and interpretation by the brain
( 19 ) The lens tends to appear extremely thinner,when it is subjected to
a ) Nearby vision b ) Opposite vision
c ) Same vision d ) Distant vision
Answer : d ) Distant vision
( 20 ) The lens tends to take up the convex or rounded shape , when it is exposed to
a ) Near vision b ) Distant vision
c ) Dimetric vision d ) Identical vision
Answer : a ) Near vision
( 21 ) When a person suddenly shifts to a dark room, after travelling from a highly radiant area, then certain problem occurs in perceiving the objects for a short period of time and then there is considerable improvement in vision after a while . This refinement is known as
a ) Light adaptation b ) Dark adaptation
c ) Rhodopsin d )Light intensity
Answer : b ) Dark adaptation
( 22 ) Dilation of the pupil helps in allowing maximum light to reach the
a ) Nerve b ) Neuron
c ) Eyes d ) Brain
Answer : c ) Eyes
( 23 ) The moment a person comes to a highly radiant area, after travelling from a dark area, then he faces blinding impact for a certain duration of time . After a while , he again returns back to his natural vision with the help of
a ) Colour vision b ) Colour blindness
c ) Blind spot d ) Light adaptation
Answer : d ) Light adaptation
( 24 ) The state in which the farthest objects cannot be seen clearly but the objects which are placed nearby can be perceived in a crystal clear manner and this state is called
a ) Myopia b ) Hyperopia
c ) Astigmatism d ) Presbyopia
Answer : a ) Myopia
( 25 ) Myopia can be rectified with the help of
a ) Convex lens b ) Non – convex lens
c ) Concave lens d ) Cylindrical lens
Answer : c ) Concave lens
( 26 ) The state in which the nearby objects cannot be perceived in a clear manner is known by the term of
a ) Near or short – sightedness b ) Hyperopia
c ) Cataract d ) Night – blindness
Answer : b ) Hyperopia
( 27 ) Which lens is needed for the purpose of rectifying hyperopia ?
a ) Non – convex lens b ) Concave lens
c ) Cylindrical lens d ) Convex lens
Answer : d ) Convex lens
( 28 ) A weakness in which only certain portions of the object are perceived in focal point whereas , other parts of the object tends to appear very unclear. This weakness is rightly termed as
a ) Astigmatism b ) Presbyopia
c ) Colour blindness d ) Corneal opacities
Answer : a ) Astigmatism
( 29 ) A state in which older people faces difficulty in perceiving the nearby objects in a proper manner . This condition is called
a ) Squint b ) Cataract
c ) Presbyopia d ) Blind spot
Answer : c ) Presbyopia
( 30 ) When a person faces problem in perceiving in feeble light at the night time , then this condition is known as
a ) Colour blindness b ) Night – blindness
c ) Colour vision d ) None of the above
Answer : b ) Night – blindness
( 31 ) There are two essential roles that are performed by the human ear . What are the two proficient roles ?
a ) Hearing and body balance
b ) Listening and hormonal balance
c ) Body balance and brain functioning
d ) Listening and concentrating
Answer : a ) Hearing and body balance
( 32 ) Outer ear , middle ear and inner ear constitutes the three essential segments of
a ) Nose b ) Eyes
c ) Ear d ) Throat
Answer : c ) Ear
( 33 ) “ Auricle” is another name of
a ) Ear drum b ) Incus
c ) Stapes d ) Pinna
Answer : d ) Pinna
( 34 ) Malleus , incus and stapes are primarily the three minute bones that are contained in the
a ) Inner ear b ) Middle ear
c ) Outer ear d ) Tympanic membrane
Answer : b ) Middle ear
( 35 ) The term “ ear ossicles” basically refers to the
a ) The collective association of three minute bones
b ) The disintegration of three minute bones
c ) The separation of three minute bones
d ) The discontinuity of three little bones
Answer : a ) The collective association of three minute bones
( 36 ) The inner ear is also referred to as
a ) Cochlea b ) Endolymph
c ) Membranous labyrinth d ) Perilymph
Answer : c ) Membranous labyrinth
( 37 ) The cochlea , semicircular canals and the vestibule represents the three primary components of the
a ) Outer ear
b ) Middle ear
c ) Tympanum
d ) Inner ear
Answer : d ) Inner ear
( 38 ) Which one of the following fluid acts as a filler for the median canal ?
a ) Perilymph b ) Endolymph
c ) Corti d ) Basilar membrane
Answer : b ) Endolymph
( 39 ) The pinna not only aids in accumulating the sound waves but at the same time also contributes in managing them with the help of
a ) Internal auditory canal b ) Stirrup
c ) External auditory canal d ) Ear drum
Answer : c ) External auditory canal
( 40 ) Our sensory endings possesses the ability to detect sounds that normally ranges between
a ) 20 – 20, 000 Hertz b ) 10 – 15, 000 Hertz
c ) 8 – 25, 000 Hertz d ) None of the above
Answer : a ) 20 – 20, 000 Hertz
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