Briefly explain what was happening within the fish's system when the fish was immersed in the insulin solution and mechanism of the recovery process

The fish started experiencing insulin stun. As the insulin was retained into the circulatory system through the gills, it opened up more glucose pathways in the fish's cell dividers, bringing about glucose levels in the circulatory system to drop. This decreased the measure of glucose accessible for the cerebrum, prompting tremors, trance like state and inevitable demise.