Molecule
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The zip wire transportation system in cells

This is not a diagram but a colour enhanced 3D section of one of the body's cells.

It shows in startling detail, how packages of different chemicals are transported inside a cell.

The purple line can be thought of as a zip wire on the which the packages jump on to when they receive a signal that they are needed.

The ones in red contain a blood clotting agent which rushes towards a part of the body that is cut.

They receive their 'go' signals by physical contact with other packages.

(Credit: John Berriman and Sebastian Wasilewski/PNAS)

  • 15 Aug 2019