BCH101intermediate
Match each lipid-related term to its correct description: Terms: 1. Arachidonate 2. Linolenate 3. Phospholipid 4. Prostaglandin Descriptions: A. 18-carbon polyunsaturated fatty acid with three double bonds B. Amphipathic, phosphate-containing lipid commonly found in biological membranes C. 20-carbon polyunsaturated fatty acid with four double bonds D. Eicosanoid signaling molecule derived from polyunsaturated fatty-acid precursors
Answer
1 - C, 2 - A, 3 - B, 4 - D
Explanation
### The pairs
| Item | Matches | Why |
|---|---|---|
| Arachidonate | 20-carbon fatty acid with four double bonds | Its shorthand is 20:4. |
| Linolenate | 18-carbon fatty acid with three double bonds | Its shorthand is 18:3. |
| Phospholipid | Phosphate-containing lipid commonly found in membranes | Its polar phosphate region and hydrophobic chains suit membrane structure. |
| Prostaglandin | Eicosanoid formed from polyunsaturated fatty-acid precursors | Prostaglandins are signaling lipids derived from fatty-acid precursors. |
### Terms
- **Eicosanoid**: a signaling molecule derived from certain 20-carbon polyunsaturated fatty acids.
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