- 1(current)
Q. No.With respect to the red muscle fibers [Type I], the white muscle fibers [Type II] are richer in:
| 1. | Blood capillaries | 2. | Myoglobin |
| 3. | Sarcoplasmic reticulum | 4. | Mitochondria |
Subtopic: Â Muscle Contraction: Other Considerations |
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All the following regarding red muscle fibers are true except:
| 1. | They are adapted for slow and sustained activity |
| 2. | They have a high content of myoglobin |
| 3. | They are rich in mitochondria |
| 4. | They depend on anaerobic process for energy |
Subtopic: Â Muscle Contraction: Other Considerations |
 84%
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Which of the following leads to removal of masking of active sites for mysosin during muscle contraction?
1. Binding of ATP to its site on myosin head
2. Binding of calcium with a subunit of troponin
3. Binding of acetylcholine to its receptor on sarcolemma
4. Release of acetylcholine by anterior motor neuron
1. Binding of ATP to its site on myosin head
2. Binding of calcium with a subunit of troponin
3. Binding of acetylcholine to its receptor on sarcolemma
4. Release of acetylcholine by anterior motor neuron
Subtopic: Â Muscle Contraction: Other Considerations |
 83%
From NCERT
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- 1(current)
Q. No.
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