31. This means sometimes radical mechanisms are involved, especially in redox reactions. 32. Its electrochemical reduction is facilitated by acid, electrocatalysts and redox mediators. 33. DNA in chloroplasts codes for redox proteins such as photosynthetic reaction centers. 34. The iron atom from this haem group undergoes redox reactions: 35. He voiced concerns that have since been echoed by Redox 's critics. 36. The main factors are pH and the redox potential. 37. Some species of bacteria catalyze redox transformations of arsenic. 38. However, abiotic redox reactions of arsenic are slow. 39. For example, flavin and heme cofactors are often involved in redox reactions. 40. Half-reactions are often used as a method of balancing redox reactions.
