A) Hibernating animals can synthesise fat instead of wasting energy of respiration,
B) Energy is saved because glycolysis and the citric acid cycle shuts down.
C) Pyruvate is converted to lactic acid by anaerobic fermentation.
D) The energy of respiration is converted into heat.
Correct Answer: D
Solution :
: In mammals there are two types of adipose tissue: white and brown. Brown fat cells contain a great many mitochondria, and brown adipose tissue is well supplied by blood capillaries. Brown adipose tissue produces considerable amount of heat, because there lipids are respired with little or no ATP formation; most energy is released as heat. This heat is transported in the blood to the body organs.
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