Increased heat for thermoregulation (thermogenesis)is produced either by shivering or by nonshivering mechanisms.Which of the following is involved in nonshivering thermogenesis?
A) Brown fat
B) The uncoupling of oxidative phosphorylation
C) High levels of iron in the diet
D) The restriction of metabolic precursors
E) Both a and b

Question

Quizplus · Accepted Answer

Nonshivering thermogenesis involves the activation of brown fat, which functions by uncoupling oxidative phosphorylation, leading to the production of heat without generating ATP. Therefore, both options A (brown fat) and B (uncoupling of oxidative phosphorylation) are involved in nonshivering thermogenesis. High levels of iron in the diet (option C) and the restriction of metabolic precursors (option D) are not directly involved in thermogenesis.

Increased Heat for Thermoregulation (Thermogenesis)is Produced Either by Shivering or by Nonshivering