There are a number of lipids that are found in foods and contribute to various f
ID: 280564 • Letter: T
Question
There are a number of lipids that are found in foods and contribute to various functions in the body. Triglycerides are the most common lipid found in food and in the body; they consist of a ____________ backbone attached to three fatty acids.
Fatty acids are classified based on the degree to which the carbon chain is saturated with ________
A fatty acid is ____________ if it contains no carbon-carbon double bonds, ____________ if it contains two or more carbon-carbon double bonds, and ____________ if it has only one carbon-carbon double bond.
The unsaturated fatty acids can exist in one of two structural forms: the ____________ form occurs when hydrogens on both carbons forming the double bond lie on opposite sides of that bond.
When hydrogens on an unsaturated fatty acid lie on the same side of the carbon-carbon double bond, a ____________ formation exists.
Explanation / Answer
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There are a number of lipids that are found in foods and contribute to various functions in the body. Triglycerides are the most common lipid found in food and in the body; they consist of a glycerol backbone attached to three fatty acids.
Fatty acids are classified based on the degree to which the carbon chain is saturated with hydrogen.
A fatty acid is saturated if it contains no carbon-carbon double bonds, polyunsaturated if it contains two or more carbon-carbon double bonds, and monounsaturated if it has only one carbon-carbon double bond.
The unsaturated fatty acids can exist in one of two structural forms: the trans form occurs when hydrogens on both carbons forming the double bond lie on opposite sides of that bond.
When hydrogens on an unsaturated fatty acid lie on the same side of the carbon-carbon double bond, a cis formation exists.
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