Q151.The activity of which cranial nerve can protect us by warning about harmful chemicals in the air?
(1) l
(2) lX
(3) VI
(4) X
Ans.1
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Q152.The corpuscles lying deep in dermis and responsible for deep pressure are known as
(1) Pacinian corpuscles
(2) Meissner's corpuscles
(3) Merkel's discs
(4) Ruffini's endings
Ans.1
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Q153.A molecule cannot be tasted or smelled until it has been
(1) Converted into protein
(2) Converted into transmitter
(3) Grouped into multimolecular complex
(4) Dissolved in a liquid
Ans.4
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Q154.Total number of taste buds in the human tongue is approximately
(1) 1000
(2) 10,000
(3) 1,00,000
(4) 50,000
Ans.2
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Q154.When the object is at a distance of more than 6 metres, at that time
(1) Ciliary muscles are fully contracted
(2) Convexity of lens is maximum
(3) Eyes are fully relaxed
(4) All of these
Ans.3
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Q155.In old age, the vision of eye usually becomes dim due to
(1) Myopia
(2) Hypermetropia
(3) Cataract
(4) Astigmatism
Ans.3
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Q156.In hypermetropia, the image is formed
(1) Before retina and is corrected by convex lens
(2) Behind retina and is corrected by convex lens
(3) Before retina and is corrected by concave lens
(4) Behind retina and is corrected by concave lens
Ans.2
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Q157.In presbyopia
(1) The eye ball becomes short
(2) The lens become opaque
(3) The retina gets damaged
(4) Diminution of accommodation of lens due loss of elasticity
Ans.4
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Q158.In myopia, light rays from far off objects converge
(1) Behind the retina
(2) In front of the retina
(3) On the retina
(4) In the retina
Ans.2
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Q159.Overproduction of aqueous humour results in
(1) Astigmatism
(2) Presbyopia
(3) Cataract
(4) Glaucoma
Ans.4
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Q160.Short sightedness or myopic vision is corrected by wearing
(1) Convex lenses
(2) Concave lenses
(3) Convex mirrors
(4) Concave mirrors
Ans.2
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