Which process triggers increased mitochondrial UCP1 production during arousal from hibernation?

💡 Explanation

Activation of non-shivering thermogenesis increases UCP1, uncoupling the mitochondrial proton gradient, boosting heat production; this warms the hibernating animal. Therefore, UCP1 generation spikes to raise body temperature, rather than suppressing fat or altering muscle action, because controlled temperature changes dictate arousal.

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