Q. In skeletal muscle: (Solved)
1. thick filaments which are made up of myosin and tropomyosin are lined up to form A bands
2. the dark A band has a light H band in its centre which in turn has an M line in its middle
3. think filaments are made up of actin, tropomyosin and troponin and form the H band
4. Z lines are connected to the thick filaments
5. during contraction, the width of the A band reduces
- c. think filaments are made up of actin, tropomyosin and troponin and form the H band