purine biosynthesis 4 Carbohydrates transport 3 Nucleic acids 2 catecholamines 2 Carbohydrate transport 1 Lipolysis 1 Metabolic pathways 1 Metabolism 1 Purine nucleotides 1 Purine synthesis 1 Pyrimidine nucleotides 1 Quinolines, Purines, Nucleic Acids: Organic Chemistry 1 Stereochemistry and the chemistry of natural products, Chemical Constitution, Optical Isomerism, Nicleophilic substitution, Geometrical Isomerism, Stereochemistry of biphenyl compounds, Stereochemistry of some elements other than carbon, 1 carbohydrates, Terpenoids, Carotenoids, polycyclic aromatic hydrocarbons, steroids, Heterocyclic compounds containing two or more hetero-atoms, amino-acids and proteins, alkaloids, anthocyanins, purines and nucleic acids, vitamins, chemotherapy, 1 haemoglobin, chlorophyll and phthalocyanines 1 purine nucleosides 1 purines 1