* Saturated means that all the carbon atoms in the fatty acid chain are bonded to the maximum number of hydrogen atoms.
* Unsaturated fatty acids have at least one double or triple bond between carbon atoms. This means they have fewer hydrogen atoms than a saturated fatty acid with the same number of carbons.
Example:
* Saturated fatty acid: Butyric acid (4 carbons) has the formula CH3(CH2)2COOH. It has the maximum number of hydrogen atoms possible for a 4-carbon chain.
* Unsaturated fatty acid: Butyric acid with a double bond (C4H6O2) has fewer hydrogen atoms than the saturated version because of the double bond.
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