Multiple Choice
Which of the following is true regarding saturated fatty acids?
32. Lipids
Fatty Acids
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How is a saturated fatty acid different from an unsaturated fatty acid?
A
Saturated fatty acids contain more oxygen atoms than unsaturated fatty acids.
B
Saturated fatty acids are liquid at room temperature, while unsaturated fatty acids are solid.
C
Saturated fatty acids are typically found in plant oils, while unsaturated fatty acids are found in animal fats.
D
Saturated fatty acids have no double bonds between carbon atoms, while unsaturated fatty acids have one or more double bonds.
Verified step by step guidance1
Begin by understanding the basic structure of fatty acids. Fatty acids are long hydrocarbon chains with a carboxylic acid group at one end.
Identify the key structural difference between saturated and unsaturated fatty acids. Saturated fatty acids have no double bonds between carbon atoms, while unsaturated fatty acids have one or more double bonds.
Consider the implications of these structural differences. The presence of double bonds in unsaturated fatty acids introduces kinks in the chain, affecting their physical properties.
Explore the physical properties resulting from these structural differences. Saturated fatty acids tend to be solid at room temperature due to their straight chains, while unsaturated fatty acids are usually liquid because the kinks prevent tight packing.
Reflect on the sources of these fatty acids. Saturated fatty acids are commonly found in animal fats, whereas unsaturated fatty acids are typically found in plant oils.
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