The Orbit Molecular modelling set is easy to use and durable. The building system allows you to create accurate 3-D representations of all commonly model compounds. The Orbit building system uses 1cm atoms, colour coded according to 12 different elements, with prongs set at the correct bonding angles. The Biochemistry Kit Class Set contains a large quantity of atoms allowing groups of students to construct multiple Biochemistry molecular models. The contents cover topics including amino acids, monosaccharides, glycerol, fatty acids, steroids, purines and pyrimidines, peptides, disaccharides, lipids, nucleosides, nucleotides, proteins, polysaccharides and nucleic acids. Suitable for study at Advanced level, College and University. The set contains 400 atoms, 395 bonds and an instruction booklet. Supplied in a compartmented box. . .