(a) Draw the following fatty acids: () 18:2(4(i) 18:1(A) (i)1.0 (b) Which fatty
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Question
(a) Draw the following fatty acids: () 18:2(4(i) 18:1(A) (i)1.0 (b) Which fatty acid(s) and saturated, unsaturated, and/or polyunsaturated fatty aci(s)? (c) Give the name for Fatty acids () and (ii) using o designation. (d) Give the melting points from the highest to lowest. Q2.Which of the following is unlikely to be a characteristic of a membrane protein? (chee applied) (A) Largely hydrophobic transmembrane segments (B) a-helical membrane-spanning motifs. (C) Covalently attached lipid moities (D) Symmetric orientation across the membrane (E) B-sheet membrane-spanning motifs Q3. Explain why fatty acid cannot be used as a membrane lipid?Explanation / Answer
Q2. All of facts are characteristic of a membrane protein except
(D) Symmetric orientation across the membrane.
Membrane Proteins Are Oriented Asymmetrically as they do not move from one face of the bilayer to the other.
Q3.
Fatty acids are mostly hydrophobic and are lacking polar head groups unlike membrane phospholipids. So they are commonly used for energy storage purpose. Amphiphilic nature is essential requirement of a lipid to be membrane lipid. Two layers are attached together keeping hydrophobic region inside while hydrophilic polar group outside the bilipid layer.
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