12th Biology Public Question Paper. We covered all the 12th Biology Public Question Paper MCQs in this post for free so that you can practice well for the exam.
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12th Biology Public Objective Question Paper for Students
The coiled portion of the labyrinth is called
(a) Cochlea
(b) Eardrum
(c) Pinna
(d) Ear canal
Option a – Cochlea
The gelatinous, elastic membrane covering the sensory hair cells of the human ear is known as
(a) Basilar membrane
(b) Tectorial membrane
(c) Reissner’s membrane
(d) Neuro-sensory membrane
Option b – Tectorial membrane
The wax gland present in the ear canal is called
(a) Sweat gland
(b) Prostate gland
(c) Cowper’s gland
(d) Sebaceous gland/ceruminous gland
Option d – Sebaceous gland/ceruminous gland
The part of the internal ear responsible for hearing is
(a) Cochlea
(b) Semicircular canal
(c) Utriculus
(d) Sacculus
Option a – Cochlea
The human body’s main organ of balance is located in
(a) Inner part of the ear
(b) Middle part of the ear
(c) Front part of the brain
(d) Top part of the vertebral column
Option a – Inner part of the ear
Which of these bones is not a part of the human ear?
(a) Malleus
(b) Stapes
(c) Femur
(d) Incus
Option c – Femur
The ………… helps in equalizing the pressure on either side of the eardrum.
(a) Cochlear nerve
(b) Malleus
(c) Eustachian tube
(d) Incus
Option c – Eustachian tube
The internal ear of humans is filled with
(a) Lymph
(b) Endolymph
(c) Perilymph
(d) Both (b) and (c)
Option d – Both (b) and (c)
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