The thick filaments of the sarcomere are composed mainly of the protein
- A. myosin
- B. actin
- C. troponin
- D. tubulin
Explanation
Myosin molecules form the thick filament, their heads projecting to pull on actin during contraction. Actin makes the thin filament, troponin regulates it, and tubulin builds microtubules, so each protein has its own place in the sarcomere.
Related questions
Which of the following bones belongs to the axial skeleton?
The number of cervical vertebrae in the human vertebral column is
The longest and strongest bone of the human body is the
In compact bone, the concentric rings of matrix laid down around a central canal form a structure called
The hardness of bone is due to the deposition of