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Important questions on Sensory Reception And Processing

Retina of the vertebrate eye consists of 

A

Neurons and neuroglia

B

Rods, cones, neurons and neuroglia

C

Rods, cones and neuroglia

D

Rods and cones

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Assertion

Accomodation in the bird's eye is controlled by ciliary apparatus.

Reason

It involves deformation of retina.

A

Both Assertion and Reason are correct and Reason is the correct explanation for Assertion.

B

Both Assertion and Reason are correct but Reason is not the correct explanation for Assertion.

C

Assertion is correct but Reason is incorrect.

D

Assertion is incorrect but Reason is correct.

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In mammals, the middle ear ossicles from inside to outside are in the sequence of

A

Stapes, incus, malleus

B

Stapes, malleus, incus

C

Incus, malleus, stapes

D

Malleus, incus, stapes

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If the source of the light in front of the eye suddenly becomes more bright 

A

Pupil contracts

B

Focus of lens changes

C

Vitreous humour becomes liquid like

D

Retinal blood supply is cut-off

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Which animal have porphyropsin instead of pigment rhodopsin in rods? 

A

Fish

B

Birds

C

Reptiles

D

Mammals

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Match column I with column II and select the correct option from the given codes.
Column IColumn II
A. Pinna(i) Collects vibrations in the air which produces sound
B. Ear canal(ii) Passage for sound wave from pinna to ear drum
C. Tympanic membrane(iii) Transfers sound wave to ear ossicles
D. Ear ossicles(iv) Increases the efficiency of transmission of sound waves to the inner ear
E. Cochlea(v) Has hearing receptors
F. Eustachian tube(vi) Equalises the pressure on both sides of ear drum
G. Auditory nerves(vii) Impulse transfer from organ of Corti to auditory cortex in temporal lobe of cerebrum

A

A - (i), B - (ii), C - (iii), D - (iv), E - (v), F - (vi), G - (vii)

B

A - (vii), B - (vi), C - (v), D - (iv), E - (iii), F - (ii), G - (i)

C

A - (i), B - (ii), C - (iv), D - (iii), E - (v), F - (vi), G - (vii)

D

A - (i), B - (ii), C - (iii), D - (iv), E - (v), F - (vii), G - (vi)

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In frog, the auditory nerve arises from

A

Medulla

B

Pharynx

C

Internal ear

D

Tongue

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Eye is most sensitive to 

A

20 light 

B

1000 light 

C

5000 light

D

7000 light

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Eyes of cats glitter at night due to presence of

A

Luciferin

B

Tapetum cellulosum

C

Tapteum fibrosum

D

Porphyropsin

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Photosensitive pigment is

A

Similar in all eyes

B

Different in all eyes

C

Similar in all vertebrate eyes

D

Red in all eyes

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