From the diagram of the device, it can be seen that the reaction occurring at the left electrode is the oxidation of organic matter as CO 2 escaping, and the electrode reaction formula is C 6 H 12 O 6 +6H 2 O-24e - 6CO 2 ↑ +24 H + , is an oxidation reaction, the right electrode reaction occurs for the O 2 get electrons into H 2 O, electrode reaction formula for O 2 +4e - +4H + =2H 2 O is a reduction reaction. Therefore, M is the negative electrode and N is the positive electrode. According to the principle that charges of the same kind repel each other and charges of different kinds attract each other, H + moves from the M-pole region to the N-pole region when the battery is in operation. If the N-pole consumes 5.6 L of O 2 , then the electron transfer n(e-) = "(5.6" L ÷ 22.4L/mol) × 4 = "1mol," then there are N A H + through the ion exchange membrane. Therefore the wrong option is D.