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Describe what property of desmosomes makes them important in cells undergoing mechanical stress like muscle cells.
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- Give two examples of biological functions that are enabled by microfilaments or microtubules together with associated motor proteins.These could be whole cell functions or functions within the cell.Actin filaments, microtubules, and bacterial flagella are all built from small subunits. Describe three advantages of assembling long filamentous structures from subunits rather than from single, long proteins.Briefly describe how the components of the cytoskeleton filaments get to the right location in the cell for filament formation.
- Explain the structure of dynein and kinesin and how their structures aid in organelle movement within a eukaryotic cell. Explain the structure of a muscle fiber and how the two proteins, actin and myosin, function together to produce movement.Describe the structures of actin filaments and microtubulesRegarding actin filaments, colchicine and taxol effects actin polymerization/depolymerization, what are the names of drugs that have a similar action on microtubules? colchicine = taxol=
- Identify the structural makeup of actin filaments, intermediatefilaments, and microtubulesThere are types of cytoskeleton fiber- intermediate filaments. Tell their structure and/or function.Please explain how an intermediate filament is similar and different in a normal skin cell while in a dry skin cell, dividing cell and normal skin tissue
- Microtubules are polar filaments; that is, one end is different from the other. What is the basis for this polarity, how is polarity related to microtubule organization within the cell, and how is polarity related to the intracellular movements powered by microtubule-dependent motors?In animal and yeast cells, it appears that these vesicles travel from the main cell body to the region where the new division is forming by moving along actin filaments. What type/family of motor protein might you expect to be associated with these vesicles to facilitate this transport? Briefly explain your reasoning.Functions of intermediate filaments, microfilaments and microtubules in animal cells?