Bio 264 exam 3 solved - Study guides, Class notes & Summaries

What structure runs from Z line to Z line? - ANSWER Sarcomere The movement of the troponin-tropomyosin complex requires _______ - ANSWER Ca2+. The actin filament is a polymer formed from 300 to 400 globular subunits called ______ - ANSWER G-actin. A myofilament is the _________. - ANSWER Protein strand composed of actin or myosin T tubules ________. - ANSWER Conduct action potentials deep into the muscle cell Arrange these structures as they participate in excitation-contraction. ...