Saturated Fats Do NOT have a double bond between carbon atoms - C=C This means that the molecule is saturated (filled) with hydrogen Here, the carbon atoms are all attached to the max number of hydrogen atoms Solid at room temperature The unhealthy fat

Unsaturated Fats Contain at least 1 double bond between carbon atoms Does NOT contain the maximum number of hydrogen atoms Contains 1 double bond between 2 carbon atoms Liquids at room temperature The healthier fat 2 Types of Unsaturated Fats: 1. Monounsaturated: - Contains only 1 double bond 2. Polyunsaturated: - Contains multiple double bonds

Hydrophobic Hydro = water ; phobic = fearing Substances that repel water away; will not mix Best example of hydrophobic substances are lipids This is the reason why oil and water do NOT mix A Phospholipid bilayer is hydrophobic and prevents water from entering or leaving your cells (cell membrane)

Hydrophilic Salt Alcohol Sugar Baking Soda Hydro = water ; philic = loving Substances that mix with water and will NOT repel it Examples of Hydrophilic substances are: Salt Alcohol Sugar Baking Soda Anything that will dissolve or mix in water is hydrophilic