3.1.3.24 Biosynthesis of secondary metabolites - 01110 3.1.3.24 Metabolic pathways - 01100 3.1.3.24 Starch and sucrose metabolism - 00500 3.1.3.24 sucrose biosynthesis I (from photosynthesis) - - 3.1.3.24 sucrose biosynthesis II - - 3.1.3.24 sucrose biosynthesis III - -