Biochemistry (Looseleaf)
Biochemistry (Looseleaf)
9th Edition
ISBN: 9781319114800
Author: BERG
Publisher: MAC HIGHER
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Chapter 36, Problem 7P
Interpretation Introduction

Interpretation:

Actin monomers in ATP form polymerize to form filaments which disperse again to free actin monomers should be explained. 

Concept introduction:

The actin is a type of microfilaments of the cytoskeletal system. The actin monomers polymerize by addition of the actin at the end and form long helical chains.

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What keeps the actin monomers from polymerizing totally into filaments? explain.
Please help me with this question. More than one answer may be correct.  Intermediate filaments Options: A)  are larger than 10nm in diameter B)  have a hollow core C)  include microtubules D)  uses a filamentous monomers E)  have multiple types of monomers they can be composed of.
Salmoneus dies.When a cell dies its plasma membrane becomes“leaky”;i.e.,it becomes permeable to ions that were unable to freely cross the membrane during life. Thus, after death, calcium ions leak across the sarcolemma of muscle fibers. This calcium leak causes rigor mortis, a temporary stiffness of the muscles after death. Apply your understanding of the mechanism of skeletal muscle contraction (specifically regarding events within muscle fibre) and explain the molecular basis of the phenomenon known as rigor mortis.
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