Which mechanism maintains minimal ATP production within brown adipose tissue during mammalian hibernation induced torpor?

💡 Explanation

During hibernation the decoupling protein UCP1 allows protons to leak across inner mitochondrial membrane without ATP production because this mechanism helps to maintain a basal body temperature. Therefore, UCP1-mediated heat production occurs, rather than mitochondrial fusion, fatty acid oxidation, or Krebs cycle inhibition alone, none of which directly produce body heat.

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