8 l Normal No Spa.. Heading 1 Title Subtitle Subt LIPID QUESTIONS 1. A fatty aci

Question

8 l Normal No Spa.. Heading 1 Title Subtitle Subt LIPID QUESTIONS 1. A fatty acid designated 18:4 has 18and 4 2. Which fatty acid would have a lower melting point? 18:0 or 18:4? 3. Name the four chemical components ofphosphatidylcholine and 4. Name one membrane lipid which contains two glycerol units. 5. In sphingolipids, glycerol is replaced by which molecule? 6. Sphingomyelins consist of sphingosine, fatty acid and 7. Cerebrosides and gangliosides consist of sphingosine, fatty acid and molecules molecules 8. A membrane lipid which contains no fatty acids is 9. Phospholipids do not usually form micelles, but rather form

Explanation / Answer

1. Fatty acid designated 18:4 has 18 Carbons and 4 Double bonds.

2. 18:4 has lower melting point because of unsaturation.

3. The four chemical components of phosphatidylcholine are Choline head group, Glycerophosphoric acid, a Saturated fatty acid and an Unsaturated fatty acid.

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