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← Nature & AnimalsWhich outcome occurs when prolonged cold exposure depletes glycogen?
A)Ineffective non-shivering thermogenesis✓
B)Decrease in metabolic water release
C)Increased lactate fermentation rate
D)Complete ATP synthase deactivation
💡 Explanation
Ineffective non-shivering thermogenesis results because the depletion of liver glycogen inhibits cellular respiration pathways fueling the uncoupling protein 1 channel in the mitochondria, which generates heat rather than ATP; therefore, shivering is stimulated prior to depletion rather than afterward.
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