Here's why:
* Saturated fatty acids have all their carbon atoms linked to the maximum number of hydrogen atoms. Think of it like a saturated sponge, full of water.
* Unsaturated fatty acids have at least one double bond between carbon atoms, which means there's room for more hydrogen atoms to be added. This is like a sponge that's not fully saturated with water.
The presence of double bonds in unsaturated fatty acids affects their properties, making them:
* Liquid at room temperature: Think of olive oil, which is high in unsaturated fats.
* Generally considered healthier than saturated fats: Unsaturated fats can help lower cholesterol levels and reduce the risk of heart disease.
Types of Unsaturated Fatty Acids:
* Monounsaturated fatty acids: Have one double bond. Examples include oleic acid (found in olive oil) and palmitoleic acid.
* Polyunsaturated fatty acids: Have two or more double bonds. Examples include linoleic acid (omega-6) and alpha-linolenic acid (omega-3).
