dehydration synthesis.?

Question

what happens to the open bonds that are created as neighboring sugar molecules lost component atoms during dehydraton synthesis?

Answer 1

Let us take glucose for example. the glucose structure looks like -CH(OH)-CH(OH)-CH(OH)-. When it looses one water molecule, one OH group will be lost from one carton, and a H atom from the adjacent C. However, the H atom from the OH group attaching the second carbon would rearrange to the first carbon, so the final result would be either ketone or aldehyde:
-CH(OH)-CH(OH)-CH(OH)-
==> -CH=C(OH)-CH(OH)-
==> -CH2-C(=O)-CH(OH)-
Keeping doing that, finally the result would be just carbon black:
==> -C(triple bond to)C- ....