Dinitrophenol (DNP) is an uncoupler, or has the ability to separate the flow of electrons and the pumping of H⁺ ions for ATP synthesis. This means that the energy from electron transfer cannot be used for ATP synthesis. Fifty years ago, DNP was given as a drug to help patients lose weight. Why does this work? Why would this be dangerous?

A.	Uncoupling the electron transport chain would inhibit fermentation and decrease ATP production, a potentially dangerous situation.
B.	If electron transport doesn't produce ATP, then much more sugar must be metabolized for energy needs. Very low production of ATP would be lethal.