The ins ide of a cell bus tles with m ore traffic

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Unformatted text preview: roads , and, like all vehicles , the cell’s m oving parts need engines . Phys icis ts and biologis ts have looked ‘under the hood’ of the cell and laid out the nuts and bolts of m olecular engines . The ability of s uch engines to convert chem ical energy into m otion is the envy of the nanotechnology res earchers looking for ways to power m olecule-s ized devices . Medical res earchers als o want to unders tand how thes e engines work. Becaus e thes e m olecules are es s ential for cell divis ion, s cientis ts hope to s hut down the ram pant growth of the cancer cells by deactivating certain m otors . Im proving m otor-driven trans port in nerve cells m ay als o be helpful for treating dis eas es s uch as Alzheim er’s , Parkins on’s or ALS, als o known as Lou Gehrig’s dis eas e. We wouldn’t m ake it far in life without m otor proteins . Our m us cles wouldn’t contract. We couldn’t grow, becaus e the growth proces s requires cells to duplicate their m achinery and pull the copi...
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This document was uploaded on 03/23/2014.

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