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How many carboxyl groups are present in fatty acids?(a) 1(b) 2(c) 3(d) 4I have been asked this question during an online interview.My doubt is from Chemical Basis of Life topic in division Chemical Basis of Life of Cell Biology

Answer»

The correct ANSWER is (a) 1

The explanation is: Fatty acids are long chain HYDROCARBONS containing only one carboxyl group at the end of the molecule. Three fatty acid chains link up via ester BONDS to a glycerol molecule to form TRIACYLGLYCEROL. The hydrocarbon chain of fatty acids is hydrophobic and the carboxyl group is HYDROPHILIC.



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