2024-10-08 18:32:15 +00:00
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- **Lipids** are a class of nutrients that do not dissolve in water.
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- They will dissolve in organic solvents
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- Oil is less dense than water, so it will rise to the top of a solution
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- Major functions of lipids in the body include
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- Providing and storing energy
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- forming and maintaining cell membranes
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- producing steroid hormoes
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- insulating the body
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- cushioning the body against bumps and blows
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- forming body contours
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- **absorbing fat soluble vitamins and phytochemicals**
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## Fatty Acids
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A fatty acid is a hydrocarbon chain found in lipids; one end of the chain forms a carboxylic acid, and one end forms a methyl group.
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- Short chain fatty acids have 2 to 4 carbons
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- Medium chain fatty acids have 6 to 12 acids
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- Long chan acids have 14 to 24 carbons
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- Fatty acids are identified by:
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- The number of carbon atoms
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- The type of bond between carbon atoms
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- **Saturated fatty acid (SFA)** Every single carbon atom is filled with hydrogen atoms
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- **Unsaturated fatty acid** is a fatty acid that is missing hydrogen atoms and has one or more double bonds within the carbon chain
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- **Monounsaturated** (MUFA)
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- Has one double bond within the carbon chain
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- **Polyunsaturated** (PUFA)
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- Fatty acid that has two or more bonds within the carbon chain
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2024-10-08 18:27:15 +00:00
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# Triglycerides
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# Phospholipids
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# Sterols
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