1
NEET 2013
MCQ (Single Correct Answer)
+4
-1
Change Language
The H-zone in the skeletal muscle fibre is due to
A
the central gap between actin filaments extending through myosin filaments in the A-bond
B
extension of myosin filaments in the central portion of the A-band
C
the absence of myofibrils in the central portion of A-band
D
the central gap between myosin filaments in the A-band.
2
NEET 2013
MCQ (Single Correct Answer)
+4
-1
Change Language
Select the correct statement with respect to locomotion in humans.
A
The vertebral column has 10 thoracic vertebrae.
B
The joint between adjacent vertebrae is a fibres joint.
C
A decreased level of progesterone causes osteoporosis in old people.
D
Accumulation of uric acid crystals in joints causes their inflammation.
3
AIPMT 2012 Mains
MCQ (Single Correct Answer)
+4
-1
Change Language
Which one of the following pairs of chemical substances, is correctly categarised ?
A
Secretin and rhodopsin - Polypeptide hormones
B
Pepsin and prolactin - Two digestive enzymes secreted in stomach
C
Troponin and myosin - Complex proteins in striated muscles
D
Calcitonin and thymosin - Thyroid hormones
4
AIPMT 2012 Prelims
MCQ (Single Correct Answer)
+4
-1
Change Language
Select the correct statement regarding the specific disorder of muscular or skeletal system.
A
Muscular dystrophy $$-$$ Age related shortening of muscles
B
Osteoporosis $$-$$ Decrease in bone mass and higher chances of fractures with advancing age
C
Myasthenia gravis $$-$$ Autoimmune disorder which inhibits sliding of myosin filaments
D
Gout $$-$$ Inflammation of joints due to extra deposition of calcium
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