Electrophoresis of native proteins on polyacrylamide gels: a) how does the simply blue stain give discernible bands on a destained gel? b) the apparatus is designed so that the (red) terminal connected to the (+) port on the power supply connects with the electrode in the bottom buffer tank. this is the anode. how does the result of the cellulose acetate exercise assure us that the ldh in these samples will migrate towards the anode?