The sarcomere is the functional unit of muscle cells. Test your basic knowledge of sarcomere structure and function by taking this simple quiz.
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(1) The thin filaments of muscle fibers are made of the following protein:
(2) The thick filaments of muscle fibers are made of the following protein:
(3) Within the muscle sarcomere, at the outer edges of the A band where there is overlap between the thin and thick filaments, each thin filament is surrounded by:
(4) Within the muscle sarcomere, binding of Ca2+ to this molecule will lead to the exposure of cross-bridge binding sites.
(5) This protein found within skeletal muscle fibers is thought to be the largest (i.e., number of amino acid residues) known protein.
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Posted: Monday, September 8, 2014
Last updated: Tuesday, March 11, 2025
Last updated: Tuesday, March 11, 2025
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