SEARCH Articles Figures Tables Chemical pathway studies Forced degradation studies pathway Isoprenoid biosynthetic pathway chemical studies Kinetic pathways, studying Metabolic studies to identify and quantify pathways in cells Permeability Studies and Characterization of Drug Absorption Pathways Protein kinases signal transduction pathways, study Reaction pathway studies STABLE ISOTOPES IN THE STUDY OF BIOSYNTHETIC PATHWAYS Studies of biosynthetic pathways Studying Biosynthetic Pathways