Saturated fatty acid

Definition

A saturated fatty acid is a type of fatty acid that has no double bonds between the carbon atoms of its hydrocarbon chain. This structure makes it fully 'saturated' with hydrogen atoms, resulting in a straight and rigid configuration.

5 Must Know Facts For Your Next Test

1. Saturated fatty acids are typically solid at room temperature.
2. They are commonly found in animal fats and some plant oils like coconut oil and palm oil.
3. High intake of saturated fatty acids is associated with increased levels of LDL cholesterol in the blood.
4. The absence of double bonds means they have higher melting points compared to unsaturated fatty acids.
5. Saturated fatty acids are used by the body for energy storage and cellular structure.

Review Questions

• What structural characteristic defines a saturated fatty acid?
• In what state (solid or liquid) are most saturated fatty acids found at room temperature?
• How does the intake of saturated fatty acids affect cholesterol levels?

Related terms

Unsaturated Fatty Acid: A type of fatty acid that contains one or more double bonds within the carbon chain, resulting in kinks that prevent tight packing.

Triglyceride: A lipid molecule composed of one glycerol backbone bonded to three fatty acids, used for long-term energy storage.

Lipid Bilayer: A double layer of lipids, primarily phospholipids, that forms the fundamental structure of cell membranes.