NUTRITION
LIPIDS
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Question
[CLICK ON ANY CHOICE TO KNOW THE RIGHT ANSWER]
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They are liquid at body temperature
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They are poor conductors of heat
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They are good conductors of heat
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None of the above
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Detailed explanation-1: -Answer and Explanation: Fats (triglycerides), as poor conductors of heat, form thick layers of fatty tissues that become accumulated inside the body of the organisms. Therefore fats are considered as good thermal insulators.
Detailed explanation-2: -Triglycerides are excellent long-term energy storage molecules because they will not mix with water and break down. We can also eat them (in delicious fried foods) and break them down to get energy. They are made of a glycerol backbone attached to three fatty acid chains. Glycerol is a simple sugar alcohol.
Detailed explanation-3: -Fats and oils are lighter than water, having densities of about 0.8 g/cm 3. They are poor conductors of heat and electricity and therefore serve as excellent insulators for the body, slowing the loss of heat through the skin.