Appendicular skeleton is
Appendicular skeleton is
Options
(a) girdles and their limbs (b) vertebrae (c) skull and vertebral column (d) ribs and sternum
Correct Answer:
girdles and their limbs
Explanation:
No explanation available. Be the first […]
Locomotion and Movement
Excessive pulling of ligaments between two bones causes
Excessive pulling of ligaments between two bones causes
Options
(a) fracture of the bones (b) sprain (c) breakage of the muscles (d) fracture of the bones & sprain & breakage of the muscles
In bony vertebrates, the formation of bone is often preceded by the presence of a
In bony vertebrates, the formation of bone is often preceded by the presence of a
Options
(a) chitin (b) starch (c) cartilage (d) platelets
Correct Answer:
cartilage
Explanation:
No explanation available. Be the […]
A sarcomere in the myofibrils of muscle is found in between
A sarcomere in the myofibrils of muscle is found in between
Options
(a) 2 M-lines (b) 2 Z-lines (c) 2 H-zones (d) 2 A-bands
Correct Answer:
2 Z-lines
Explanation:
No explanation available. Be […]
An all-out sprint can’t continue for more than 40 seconds because
An all-out sprint can’t continue for more than 40 seconds because
Options
(a) one runs out of oxygen (b) of accumulation of creatine (c) muscles collapse (d) one runs out of oxygen & […]
In a muscle, the functional unit of contraction is the …….. Portion
In a muscle, the functional unit of contraction is the …….. Portion of myofibril between two successive ‘Z’ lines.
Options
(a) I band (b) A band (c) H zone (d) I band with […]
A red coloured oxygen containing pigment present in muscle
A red coloured oxygen containing pigment present in muscle
Options
(a) haemoglobin (b) myoglobin (c) haemocyanin (d) Both haemoglobin & myoglobin
Correct Answer:
myoglobin
Explanation:
No explanation available. Be the first to write […]
All or none’ law is not applicable for
All or none’ law is not applicable for
Options
(a) whole skeletal muscle (b) single skeletal muscle fibre (c) whole cardiac muscle (d) single smooth muscle fibre
Correct Answer:
whole skeletal muscle
Explanation: […]
Imbalance of certain hormones, deficiencies of calcium and vitamin
Imbalance of certain hormones, deficiencies of calcium and vitamin D are the major causative factors of
Options
(a) rheumatoid arthritis (b) osteoporosis (c) osteoarthritis (d) gouty arthritis
Correct Answer:
osteoporosis
Explanation:
No explanation […]
…. acts as a shock absorber to cushion when tibia and femur come together
…. acts as a shock absorber to cushion when tibia and femur come together
Options
(a) ligament (b) cartilage (c) tendon (d) disc
Correct Answer:
cartilage
Explanation:
No explanation available. Be the first […]