Glucose (and other simple sugars - monosaccharides) may be synthesized
from intermediates in glycolysis and the Krebs cycle. Monosaccharides
can be linked together to make polysaccharides.
Glycogen is formed from ADPG (ATP + glucose 6-phosphate = adenosine
diphosphoglucose) in bacteria and from UDPG in animals (UTP + glucose 6-phosphate
= uridine diphosphoglucose).
UDPNAc is the starting material for the biosynthesis of
peptidoglycan (UTP + fructose 6-phosphate = UDP-N-acetylglucosamine).
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