Complex saccharides metabolism

And finally, more types of activity are being studied. The first edition listed activities in only 11 categories. This volume discusses activities in 18 categories, including enzymes for metabolism of lipids, vitamins, xenobiotics, pyrimidines, complex saccharides, and glycoproteins, and activities that modify proteins and peptides, as well the modification of nucleic acids and their expression. 

Carbohydrates are generally considered to be the main ultimate products of carbon dioxide transformation in the plant by the photosynthetic process. The monosaccharides, which are produced in a series of stepwise reactions, appear to serve two major functions they are partially consumed in respiration with the production of energy, which is utilized for the numerous metabolic reactions of the plant they also serve as building units in being combined by various enzymes, or enzymatic systems, to form complex saccharides, such as sucrose, maltose, lactose, glycogen, starch, and cellulose. 

W. Z. Hassid, Biosynthesis of complex saccharides, in Metabolic Pathways (D. M. Greenberg, editor), Vol. I, Academic Press, New York, 1960. 

---