Carbohydrates Carbohydrate Broad class of polyhydroxylated aldehydes and ketones commonly called sugars 。 Synthesized by green plants during photosynthesis 重 Name derived from glucose Glucose was the first simple carbohydrate obtained in pure form ·brae0Y8ot8e8h6n是eoe,as ~50%of the dry weight of earth's biomass consists of glucose polymers HO HH OH O H-C-OH hO. HO-C-H or H-C-OH HHH OHH OH H-C-OH CH2OH Glucose(dextrose), a pentahydroxyhexanalCarbohydrate ▪ Broad class of polyhydroxylated aldehydes and ketones commonly called sugars ▪ Synthesized by green plants during photosynthesis ▪ Name derived from glucose ▪ Glucose was the first simple carbohydrate obtained in pure form ▪ Molecular formula of glucose, C6H12O6 , was thought to be a “hydrate of carbon, C6 (H2O)6 ” ▪ ~ 50% of the dry weight of earth’s biomass consists of glucose polymers Carbohydrates