The Amylose molecule - rotatable in 3 dimensions

This molecule can be moved by holding down the left mouse button and dragging. The right button gives many options.
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Click on the interactive links below, or simply mouse over the green writing.

Amylose is the name given to linear sections of the starch molecule consisting of alpha 1,4 linked glucose units.

This model shows 36 glucose units, forming a (strangely double) helical structure - effectively a tube. This shows 6 glucose units per turn, as can be seen when looking into the end of the molecular tube. This structure is stabilised by Hydrogen bonds, between -oH of C3 and -Oh of C2 in the next glucose unit, -oH of C2 and -Oh of C6 in another turn of the chain.

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Incidentally, iodine migrates into the space within the molecule and gives the characteristic blue-black colour used in the starch test.

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