Glossary
ADP: Adenosine diphosphate
ATP: adenosine triphosphate
Actin: Protein that forms actin filaments
Actin filament: protein complex
Striated structure: pattern formed by the regular arrangement of actin and myosin that make up muscle fibers
Glycolytic system: metabolic pathway for sugar
Myoblasts: mononuclear cells that assemble to form muscle fibers
Myofibrils: microscopic fibers within muscle fibers
Myotomes: laminar structures found in the lateral muscles of fish
Myofiber: a muscle cell, a fibrous cell that makes up a muscle
Light chain: the smaller molecular weight of a protein consisting of two basic units, a large and a small one.
Enzyme: a proteinaceous catalyst
Cytosol: the cytoplasm minus the cell organelles
Sarcomere: unit of myofibrillar structure and muscle contraction
Heavy chain: the larger molecular weight of a protein consisting of two basic units, large and small.
Fast twitch muscle: muscle that contracts quickly.
Dark muscle: Muscle unique to fish.
Slow muscle: Slowly contracting muscle
Polypeptide chain: linear chain of amino acids connected by peptide bonds
Myosin: a type of protein
Myosin filament: a fibrous connection of myosin
Phosphoric acid: a type of oxoacid of phosphorus
