Give the systematic name, Δ-x name, and the ω-x name for the following: Are there any ω-3 and ω-6 fatty acids?
Understand the Problem
The question is asking to identify the systematic name, Δ-x name, and ω-x name for various fatty acid structures presented in the image. It also inquires about the presence of ω-3 and ω-6 fatty acids among them.
Answer
Palmitic acid: saturated, Oleic acid: Δ9, ω-9, Linoleic acid: Δ9,12, ω-6, α-Linolenic acid: Δ9,12,15, ω-3.
The first structure is palmitic acid (hexadecanoic acid), which is a saturated fatty acid with no omega designation. The second structure is oleic acid (cis-9-octadecenoic acid). Δ-x name: Δ9. ω-x name: ω-9. The third structure is linoleic acid (cis,cis-9,12-octadecadienoic acid). Δ-x name: Δ9,12. ω-x name: ω-6. The fourth structure is α-linolenic acid (cis,cis,cis-9,12,15-octadecatrienoic acid). Δ-x name: Δ9,12,15. ω-x name: ω-3.
Answer for screen readers
The first structure is palmitic acid (hexadecanoic acid), which is a saturated fatty acid with no omega designation. The second structure is oleic acid (cis-9-octadecenoic acid). Δ-x name: Δ9. ω-x name: ω-9. The third structure is linoleic acid (cis,cis-9,12-octadecadienoic acid). Δ-x name: Δ9,12. ω-x name: ω-6. The fourth structure is α-linolenic acid (cis,cis,cis-9,12,15-octadecatrienoic acid). Δ-x name: Δ9,12,15. ω-x name: ω-3.
More Information
Linoleic acid is an essential omega-6 fatty acid, vital for health. α-Linolenic acid is a plant-based omega-3 fatty acid crucial for heart health.
Tips
A common mistake is confusing the positions of double bonds. Always confirm the structure before naming.
Sources
- Fatty Acid Naming & Food Sources | Nutrition - courses.lumenlearning.com
- List of unsaturated fatty acids - Wikipedia - en.wikipedia.org
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