Free Radicals: An atom or a group of atoms with an unpaired electrons both side of peroxide H₂O₂ oxygens.

Radicals are unusually reactive. Peroxide molecule as radical two free electrons

on repulsing orbitals compensate two binding orbitals between oxygen atoms. Peroxide

molecules are strongly per-oxidizing species capable causing a wide range of damage in life bodies

for protein polymer molecules, nucleic acid polymer molecules, carbohydrates polymer molecules,

lipids like as fatty acids, steroid hormons and holestrol molecules

in biological systems as they are life bodies.

Back to the catalase tutorial.