I expect that after exposure to the toxins, the pH of the intermembrane space will rise, so the electron chain will no longer be able to send electrons into the intermembrane space. I expect that since the poisons will prevent the oxygen from joining with the electrons, NADH concentration will become weak. This suggests that no more electrons will flow. I predict that the ATP rate in the matrix will no longer be generated because the poisons effectively obstruct all (ATP comes from the transport chain of electrons, but poison prevents that from flowing) and ATP will no longer be able to generate, leading to the death of the cell.