Lipids serve a number of functions in living organisms. which of the following is not a lipid function?
a).body insulation
b).short-term energy storage
c).chemical messenger carrier
d).biological membrane component

The correct answer is B) short-term energy storage.

Explanation:

Glycogen present in the muscles and liver can provide short term energy to the body in the scarcity of glucose. Glycogen is converted into glucose by a process called glycogenolysis and provide instant energy to the body.

Body has more efficiency to store lipids as fat deposits rather than glycogen and lipids provide long term energy source to the body in the absence of glucose like in long fasting. Lipids provide 9 calory energy per gram which is more than twice than energy provided by 1 gm of carbohydrate.

So lipids are used for long term energy storage because it acts as energy reserve and used when no glycogen is left to give energy. Therefore, the correct answer is B) short-term energy storage.

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