A. | It is initiated by a signal sent by CNS via sensory neuron. |
B. | Neurotransmitter generates action potential in the sarcolemma. |
C. | Increased Ca++ level leads to the binding of calcium with troponin actin filaments. |
D. | Masking of active site for actin is activated. |
E. | Utilising the energy from ATP hydrolysis to form cross bridge. |
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NEET MCQ Books for XIth & XIIth Physics, Chemistry & Biology1. | binds to troponin to remove the masking of active sites on actin for myosin. |
2. | activates the myosin ATPase by binding to it. |
3. | detaches the myosin head from the actin filament. |
4. | prevents the formation of bonds between the myosin cross bridges and the actin filament. |
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NEET MCQ Books for XIth & XIIth Physics, Chemistry & BiologyStimulation of a muscle fiber by a motor neuron occurs at:
1. the neuromuscular junction
2. the transverse tubules
3. the myofibril
4. the sarcoplasmic reticulum
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NEET MCQ Books for XIth & XIIth Physics, Chemistry & Biology