Support & Movement — Biology MCQs (Class 12)
Free chapter-wise Biology MCQs with answers for MDCAT, FSc and entry tests.
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#9 The % age of inorganic compounds in bony matrix
A) 65%
B) 55%
C) 45%
D) 35%
#10 The vertebrae in the sacral region are
A) 4
B) 5
C) 6
D) 7
#11 The lower 2 pairs of ribs not attached in front to sternum are called
A) Floating ribs
B) Costal arches
C) True ribs
D) False ribs
#12 Disease caused by low calcium in the blood is
A) Cramp
B) Tetanus
C) Tetany
D) Fatigue
#13 The total number of bones in the skeleton of adult human body is
A) 201
B) 205
C) 206
D) 350
#14 Thin filament of striated muscle fibre is composed of
A) Actin
B) Tropomyosin
C) Troponin
D) All of these
#15 Musceles are attached to bones by
A) Tendons
B) Ligaments
C) Cartilage
D) Both A & B
#16 Annulus fibrosis is
A) Inner part of intervertebral disc
B) Outer part of disc
C) Disc slip
D) Dislocation of joint
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