If muscles are made of cells, how do parts of a cell move?
In: Biology
You mean inside the cell? A lot of it is transport proteins. Cells also have little fiber like threads running through them called microtubules that the proteins use like catwalks. [Here’s a good short video showing it.](https://youtu.be/y-uuk4Pr2i8) [Here’s a longer one showing and explaining more.](https://youtu.be/WFCvkkDSfIU)
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