Lipids (a.k.a. fats).

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Presentation transcript:

Lipids (a.k.a. fats)

Dehydration synthesis (here we go again. Same vocabulary over and over Lipids also contain C, H, O elements from CHNOPS contain units of 1 molecule glycerol linked to 3 fatty acids (called a triglyceride) through dehydration synthesis (makes water)

Lipids A Lipid is called a triglyceride and it’s formed by dehydration synthesis (remove water) and it is broken down by hydrolysis (adding water)

Lipid diagram (triglyceride)

Formation of a triglyceride (lipid) Dehydration synthesis occurs & removes water

Types of Lipids saturated fats-animal fats that are solids at room temperature (contain single bonds)-solids-ex. Butter (hint: to remember saturated is single bonds think of the “s” in saturated and the “s” in single)

Types of Lipids unsaturated fats- oils from plants (contain double bonds)-liquids at room temperature ex. Olive oil

Unsaturated fats contains double bonds while saturated fats contain single bonds in the fatty acid chain

Types of Lipids cholesterol-lipid found in animal foods helps build cell membranes Note: not all cholesterol is bad, you do need some to build your cells but you don’t want a lot because it can lead to blocked arteries, etc.

Purposes of Lipids provide long term energy storage, insulation, and protection general sources of lipids-fats, oils, waxes, meat, fish, poultry, dairy products (30 % of daily calorie intake)