What is true about a skeletal muscle cell?
Correct answer: A. It has a light and dark band
- A. It has a light and dark band
- B. It has only one nucleus
- C. It is under involuntary control
- D. None of these options are correct
Explanation
Skeletal muscles or striated muscles show alternate light and dark regions under a microscope. Hence, A is the correct option. Skeletal muscles are attached to and cover the bony skeleton. Skeletal muscle fibers are multinucleated and are under voluntary control. Hence, B, C, and D are incorrect options.
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About Support and Movement
Support and movement covers the axial and appendicular skeleton, bone structure, joints and the arrangement of skeletal muscles. Muscle contraction is explained through actin, myosin, sliding filaments, calcium ions and ATP, while arthritis is distinguished as a disorder of joints rather than a normal part of movement.
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