15 Jan 2022
Problem 12
Page 2769
Section: Review the Concepts
Chapter 17: Cell Organization and Movement I: Microfilaments
Textbook ExpertVerified Tutor
15 Jan 2022
Background and context
In skeletal muscle, actin thin filaments and myosin II thick filaments assemble to make contractile structures. Nonmuscle cells also contain several types of contractile bundles, which are similar to skeletal muscle fibers but are much less organized. Also, they don't have the troponin regulatory system and are regulated by myosin phosphorylation.
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