Organophosphates Question Asked by The Countess of Mar To ask Her Majesty's Government what assessment they have made of the effects exposure to organophosphates have upon mitochondrial function, in particular, to adenosine diphosphate to adenosine triphosphate re-conversion. [HL3087] The Parliamentary Under-Secretary of State, Department of Health (Baroness Thornton) The Health Protection Agency advises that no specific evaluation has been made. However, potential toxicological effects due to disruption of mitochondrial function would be identified from the standard package of toxicological tests required for the active ingredients of pesticides, including organophosphates.