Biomolecules Class 11 NEET Questions. We covered all the Biomolecules Class 11 NEET Questions in this post for free so that you can practice well for the exam.
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MCQ on Biomolecules for NEET Students
Which one of the following statements is INCORRECT?
(A) Pars distalis produces Somatotrophic hormone.
(B) Pars intermedia secretes only one hormone.
(C) Pars nervosa secretes two hormones.
(D) Pars distalis does not secrete any hormone.
Option d – Pars distalis does not secrete any hormone.
………. is a yellowish pigmented spot present at the posterior pole of the eye and has densely. packed cones.
(A) Pupil
(B) Macula lutea
(C) Iris
(D) Blindspot
Option b – Macula lutea
Progesterone is secreted by
(A) the sac-like structure called alveoli
(B) corpus luteum
(C) Leydig cells
(D) interstitial cells
Option b – corpus luteum
A single U-shaped bone present at the base of the buccal cavity and it is also included in the skull is
(A) clavicle
(B) acromion
(C) malleus
(D) hyoid
Option d – hyoid
Rods contain a purplish red protein ………. that contains a derivative of vitamin A.
(A) rhodopsin
(B) myoglobin
(C) actin
(D) chymotrypsin
Option a – rhodopsin
The hormone cholecystokinin acts on
(A) gastric glands and atria of the heart
(B) pancreas and gallbladder
(C) urinary bladder and urethra
(D) the prostate gland and Cowper’s gland
Option b – pancreas and gallbladder
The number of cervical vertebrae in almost all mammals is
(A) 7
(B) 12
(C) 15
(D) 20
Option a – 7
Which of the following statement is INCORRECT?
(A) The cerebral aqueduct passes through the midbrain.
(B) Corpora quadrigemina are the four round swellings present in the dorsal portion of the midbrain.
(C) Meninges is the tract of nerve fibers that connect cerebral hemispheres.
(D) The cerebral cortex contains association areas.
Option c – Meninges is the tract of nerve fibers that connect cerebral hemispheres.
The olfactory receptors detect
(A) taste
(B) smell
(C) touch
(D) pain
Option b – smell
Excess secretion of growth hormone in adults especially in middle age can result in
(A) Acromegaly
(B) Graves’ disease
(C) Addison’s disease
(D) Exophthalmic goiter
Option a – Acromegaly
…… joint occurs between the carpal bones of the wrist.
(A) Pivot
(B) Hinge
(C) Gliding
(D) Saddle
Option c – Gliding
Read the following statements and select the correct option. Statement I: Afferent neuron receives a stimulus from a sensory organ. Statement II: Efferent neuron is a motor neuron.
(A) Statement I is correct while Statement II is incorrect.
(B) Statement I is incorrect while Statement II is correct.
(C) Both statements are correct.
(D) Both statements are incorrect.
Option c – Both statements are correct.
The hormone responsible for maintaining the diurnal rhythms of our body is secreted by …….. gland.
(A) adrenal
(B) thyroid
(C) pineal
(D) thymus
Option c – pineal
Which of the following bone does NOT form a forelimb?
(A) Humerus
(B) Femur
(C) Radius
(D) Metacarpal
Option b – Femur
Which of the following group correctly includes motor nerves?
(A) Olfactory, Maxillary, Hypoglossal
(B) Vagus, Auditory, Abducens
(C) Abducens, Trochlear, Occulomotor
(D) Facial, Occulomotor, Vagus
Option c – Abducens, Trochlear, Occulomotor
Identify the INCORRECT statement.
(A) Cortisol is a glucocorticoid that stimulates RBC production.
(B) Adrenal cortex secretes the hormone aldosterone.
(C) Epinephrine and norepinephrine are commonly called catecholamines.
(D) Adrenal medulla secretes corticoids.
Option d – Adrenal medulla secretes corticoids.
Select the INCORRECT match.
(A) Vertebrochondral ribs – 8th, 9th, and 10th pair
(B) Floating ribs – 11th and 12th pair
(C) True ribs – 1st to 7th pair
(D) False ribs – 9th and 10th pair
Option d – False ribs – 9th and 10th pair
…….. regulate the diameter of pupuil
(A) Anterior portion of the sclera
(B) Muscle fibers of the iris
(C) Ciliary body
(D) Choroid
Option b – Muscle fibers of the iris
Which of the following is CORRECT regarding the hormone ANF?
(A) It is secreted by the gastrointestinal tract.
(B) It is secreted when blood pressure decreases.
(C) It stimulates gastric secretion.
(D) It is a peptide hormone.
Option d – It is a peptide hormone.
Which of the following statement is INCORRECT?
(A) Clavicle is commonly called the collar bone.
(B) The two halves of the pelvic girdle meet ventrally to form the pubic symphysis.
(C) Scapula is situated in the dorsal part of the thorax.
(D) Limb bones and girdles form the axial skeleton.
Option d – Limb bones and girdles form the axial skeleton.
Identify the type of movement exhibited by ova and fertilized egg in the ampulla of the fallopian tube.
(A) Ciliary movement
(B) Amoeboid movement
(C) Muscular movement
(D) Flagellar movement
Option a – Ciliary movement
The vestibular apparatus of the inner ear is composed of semi-circular canals and
(A) otolith
(B) malleus
(C) Eustachian tube
(D) labyrinth
Option a – otolith
Hypothalamus secretes which of the following hormone?
(A) Oxytocin and prolactin
(B) Melatonin and ADH
(C) Oxytocin and vasopressin
(D) TSH and Prolactin
Option c – Oxytocin and vasopressin
Which of the following is CORRECT regarding osteoporosis?
(A) It is caused due to increased levels of oestrogen.
(B) It is characterized by decreased bone mass.
(C) It commonly occurs in children of 2 – 5 years of age.
(D) It is a condition of progressive degeneration of skeletal muscles.
Option b – It is characterized by decreased bone mass.
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