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151.

Progressive degeneration of skeletal muscle, mostly due to genetic disorder occurs in A. Myasthenia gravisB. muscular dystrophyC. tetanyD. arthrits

Answer» Correct Answer - B
Discussion
152.

Calcium is important in skeletal muscle contraction because itA. binds to troponin to remove the masking of active sites on actin for myosinB. activates the myosin ATPase binding to itC. detaches the myosin head from the actin filamentD. prevents the formation of bonds between the myosin cross bridges and the actin filament.

Answer» Correct Answer - A
Discussion
153.

Which one is required for muscle contraction and nerve impulse transmission ?A. `Ca^(+2) ` ionsB. `Ca^(++) and Mg^(++) ` ionsC. `Mg^(++) ` ionsD. `Fe^(2+) ` ions

Answer» Correct Answer - B
Discussion