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Human Babies and Animals Adapted to the Cold Are Able

Question 61

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Human babies and animals adapted to the cold are able to maintain their body temperatures because of the presence of brown fat.The mitochondria in brown fat have a protein in them called thermogenin,which allows the flow of hydrogen ions back 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 babies and other animals warm.

Human babies and animals adapted to the cold are able to maintain their body temperatures because of the presence of brown fat.The mitochondria in brown fat have a protein in them called thermogenin,which allows the flow of hydrogen ions back 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 babies and other animals warm.

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The hydrogen ion gradient stores energy,...

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