(b) Both statements A and B are correct but statement B
is not the correct explanation of statement A.
(c) Statement A is correct but statement B is incorrect.
(d) Both statements A and B are incorrect.- Select the correct statements.
I. Oxyphil cells of parathyroid glands secrete parathormone.
II. Parathormone inhibits collagen synthesis by osteoblasts.
III. A rise in blood calcium level stimulates parathyroid to
secrete parathormone.
IV. Excess of parathormone causes calcium to be
deposited in the kidneys.
(a) I and II only (b) II and III only
(c) I and IV only (d) II and IV only - Presence of which hormone in urine indicates pregnancy?
(a) Human chorionic somatomammotropin
(b) Chorionic corticotropin
(c) Human chorionic gonadotropin
(d) Chorionic thyrotropin - Which of the following muscles is an example of rotator
type of skeletal muscle?
(a) Biceps (b) Masseter
(c) Pyriformis (d) Deltoideus - The events occurring during muscle contraction are given
below.
I. Thin myofilaments slide along the thick myofilaments.
II. The calcium ions bind to troponin causing a change in
its shape and position.
III. ATP breaks down in the presence of myosin thus causing
energised myosin cross bridges to bind to actin.
IV. An action potential stimulates the sarcoplasmic
reticulum to release calcium ions into the sarcoplasm.
The correct sequence of these events during muscle
contraction is
(a) IV, II, III, I (b) IV, II, I, III
(c) II, IV, I, III (d) II, IV, III, I. - Refer to the given figures of different bones in human
skeleton.
ABCDWhich of the given bones does not articulate with any other
bone?
(a) A (b) B
(c) C (d) D
- Match the following columns and select the correct option
from the given codes.
Column I Column II
(Cerebral lobe) (Function)
I. Occipital lobe (i) Controls intellectual ability
to abstract
II. Parietal lobe (ii) Decodes and interprets
visual information
III. Temporal lobe (iii) Sensory perception of
touch, pain, heat and cold
IV. Frontal lobe (iv) Decodes and interprets
sound, memory and emotion
(a) I-(ii), II-(iii), III-(iv), IV-(i)
(b) I-(iii), II-(ii), III-(iv), IV-(i)
(c) I-(iv), II-(iii), III-(ii), IV-(i)
(d) I-(iii), II-(ii), III-(i), IV-(iv)- A hormone secreted by the intermediate lobe of pituitary
gland is
(a) thyrotropin (b) luteinising hormone
(c) melanotrophin (d) vasopressin. - Read the following statements carefully and choose the
correct option.
(i) In green-stick fracture, bone breaks completely into
two parts which remain close to each other.
(ii) Acetylcholinesterase breaks down acetylcholine into
acetate and choline and terminates the action of the
transmitter.
(iii) GABA is released by synaptic knobs of the fibres of
some interneurons in CNS.
(iv) Isthmus is the connecting structure between two
lobes of hypothalamus.
(a) (i) and (ii) are correct. (b) (iii) and (iv) are correct.
(c) (i) and (iv) are incorrect.
(d) (ii) and (iv) are incorrect. - Refer to the diagram of a pectoral girdle as shown below.
ACDBThe tendons of the muscles attach to the pectoral girdle at
(a) A (b) B
(c) C (d) D.- Identify the correct statement regarding hypothalamus.
(a) It relays impulses back and forth between the cerebrum,
cerebellum, pons and medulla.
(b) Pneumotaxic centre is present in hypothalamus.
(c) It is thermoregulatory centre.
(d) It controls emotional behaviour expressed in the form
of joy, sorrow, fear, fight.