HUMAN NUTRITION

Detailed explanation-1: -A fatty acid is a molecule composed of a carboxyl group attached to a long chain of carbon atoms bonded with hydrogen atoms. This is called a “hydrocarbon chain, ‘’ and it is a characteristic all lipids share. The hydrocarbon chain is also what gives lipids their nonpolar property and makes them insoluble in water.

Detailed explanation-2: -Triacylglycerols are nonpolar, hydrophobic, and insoluble in water. This is due to the ester linked bond between the polar hydroxyls of glycerol and the polar carboxylates of the fatty acids.

Detailed explanation-3: -Figure 2: The basic chemical reaction of saponification. The reason that hydrocarbon tails from fats are not soluble in water is because almost all of the bonds are symmetrical and thus nonpolar.

Detailed explanation-4: -Saponification can be defined as a “hydration reaction where free hydroxide breaks the ester bonds between the fatty acids and glycerol of a triglyceride, resulting in free fatty acids and glycerol, ‘’ which are each soluble in aqueous solutions.