Enzymes Biochemistry 94 Enzymology 77 Biology 65 Proteins 31 Lipids 30 Metabolism 21 Biotechnology 20 Synthesis 19 Carbohydrates 18 Nucleic acids 16 Amino acids- proteins 13 Carbohydrate 13 Energy metabolisms 13 Lipid metabolisms 13 vitamins- co enzymes 13 Vitamins 12 Analysis 11 Biocatalysis 11 Photosynthesis 10 Physiology 10 Amino acids 8 Life sciences 8 Cell fractionation 7 Coenzymes 7 Genes 6 Genetic engineering 6 Hormones 6 Industrial applications 6 Animal nutrition 5