3. Molecules Derived from Amino Acids

Glycine Is a Precursor of Porphyrins

Heme Degradation Has Multiple Functions

BOX 22-2 On Kings and Vampires

Amino Acids Are Precursors of Creatine and Glutathione

d-Amino Acids Are Found Primarily in Bacteria

Aromatic Amino Acids Are Precursors of Many Plant Substances

Biological Amines Are Products of Amino Acid Decarboxylation

Arginine Is the Precursor for Biological Synthesis of Nitric Oxide