How tropomyosin and troponin regulate muscle contraction
9:22
Khan AcademySal Khan
How tropomyosin and troponin regulate muscle contraction
Lean how calcium ion concentration dictates whether a muscle contracts or not. Explore how myosin II, using ATP, interacts with actin filaments to enable muscle contraction. Learn about the regulatory roles of proteins tropomyosin and troponin, and the crucial part calcium ions play in muscle contraction and relaxation. This is a deep look into ...
Feb 20, 2011
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