What is responsible for the formation and stabilization of actin bundles and networks? What could be added on the plus end of the filament to increase the rate of actin polymerization? Why?

Actin is a protein that forms part of the cytoskeleton, a network of fibers that gives cells their…

Answered: What is responsible for the formation…

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Biology

What is responsible for the formation and stabilization of actin bundles and networks?

Human Physiology: From Cells to Systems (MindTap Course List)

9th Edition

ISBN:9781285866932

Author:Lauralee Sherwood

Publisher:Lauralee Sherwood

Chapter8: Muscle Physiology

Section8.1: Structure Of Skeletal Muscle

Problem 2CYU

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Osmosis

In simple words, osmosis is the slow, gradual movement of a liquid through a membrane. But there are nuances to this process. For instance, there has to be an imbalance in the distribution of solute in the liquid on either side of the membrane, which has to be semipermeable. The liquid in the region with a lower solute concentration moves to the region with a higher concentration, thereby displacing the solution in the process. The objective is to equalize the concentration of molecules on both sides of the membrane; the displacement of liquid can be viewed as a byproduct of this equalization. Since there is no energy required to carry osmosis, it is considered a passive process.

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What is responsible for the formation and stabilization of actin bundles and networks?

What could be added on the plus end of the filament to increase the rate of actin polymerization? Why?

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Actin filaments have polarity. The plus end is the end to which subunits are added more rapidly, or the end of polymerization. Which of the following would enable you to identify the plus end of actin filaments? A. Adding radiolabeled actin subunits to a mixture of actin filaments in which conditions favor depolymerization B. Adding radiolabeled actin subunits to a mixture of actin filaments in which conditions are favorable for polymerization C. Determining the ionic charge of the ends of the actin filaments D. None of the above