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Analogy for microtubules

Write down the analogy for microtubules.

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Microtubules enfold two main functions in cells and in doing so proceed like a skeleton as well as like a railroadtracks. Microtubules are the main structural constituent of cytoskeleton in cells, which offers the cell with rigidity and structure and determines the shape of cell. They as well serve to transport vesicles and proteins in cytoplasm through transport proteins which is named as dyneins and kinesins, which act much like railroad cars.

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