Human babies and hibernating or cold-adapted animals are able to maintain body temperature (a process called thermogenesis) due to the presence of brown fat. Brown fat has a high concentration of mitochondria. The mitochondria in them have a protein called thermogenin, which allows the flow of hydrogen ions through the inner mitochondrial membrane (bypassing the ATP synthase). Based on this and your understanding of cellular respiration, propose a mechanism by which brown fat helps keep animals warm