C: How many simple and mixed triacylglycerols can be constructed from glycerol, stearic acid, and oleic acid? Draw the structure of triacylglycerols which will have the lowest and highest melting point 3. Following are the melting points of 18-carbon fatty acid Stearic acid Oleic acid Linoleic acid 70 °C 13.4 °C -5.0 °C Linolenic acid -11.0 °C Answer following: a: What do you mean by the melting point of lipids? and name the following b: What could be the reason for the differences in melting point?
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- Match lipid descriptions in column A with the phospholipid type in column B ✓ H is attached to the phosphate group bound to C3 of glycerol backbone ✓ An amino acid is attached to the phosphate group bound to C3 of glycerol backbone A primary ammonium ion is found in its structure A quaternary ammonium ion is found in its structure A. phosphatidylcholine B. phosphatidylserine C. phospatidylethanolamine D. glycerophospholipidIdentify the following fatty acids present in fats and oils by their common names. Which is the most abundant fatty acid? What is the general formula of a saturated fatty acid?A polyunsaturated, w-9 fatty acid has 20 carbons. It has three sites of unsaturation and the double bonds are positioned such that there is one intervening carbon in between the double bonds. What is the simplified notation for this acid using A notation? O 20:4 (ASA11,13) O 20:3 (A9.11.13) O 20:3 (A79.11) O 20:3 (ASA1)
- cephalin phospatidyl ethanolamine Yields 2 fatty acids, phosphoric acid, glycerol, and choline upon hydrolysis Yields 2 fatty acids, phosphoric acid, glycerol, annd serine uponn hydrolysis1. The figure below shows the Fischer projection of an L-aldohexose. T or F O. НО H- Но H- Но- ČH2OH Naturally occurring saturated long-chain fatty acids are usually in trans- configuration. 2. T or F 3. N-acetylglucosamine is commonly found in glycosaminoglycans. T or F 4. The isoelectric point of isoleucine is lower than that of histidine. T or F 5.. At pH 7, all amino acids stop migrating in isoelectric focusing. T or F 6. The following amino acid is a L-valine. T or F СООН H-NH2 CH-CH3 CH3 7. Salting out is a process to remove salts from proteins. T or F 8. There are five carbons in a pyranose ring. T or F 9. Hydrophobic interaction can be found in protein and DNA. T or F RNA is a polymer consisting of nucleosides joined together by phosphodiester bonds. 10. T or F 11. There are 3.6 base pairs in one turn of DNA helix. T or FRank the following fatty acids from lowest melting temperature to highest melting temperature. A -0-c B-0-c -0-2 D-0-84 OBMatch lipid descriptions in column A with the phospholipid types in column B. H is attached to the phosphate group bound to C3 of glycerol backbone An amino acid is attached to the phosphate group bound to C3 of glycerol backbone A primary ammonium ion is found in its structure A quaternary ammonium ion is found in its structure A. phosphatidylethanolamine B. glycerophospholipid C. phosphatidylcholine D. phosphatidylserineFigure 1 shows the melting temperature vs chain length of stearic acid, i.e. octadecanoic acid. 90 80 - Stearic acid 70 60 40 30 Room temperature 20 10 -10 -20 4 6 8 10 12 14 16 18 20 22 24 Number of carbon atoms Figure 1 (i) What is the appearance of stearic acid at room temperature? (ii) Where would the melting temperatures of the following fatty acids, oleic acid (cis-9- Octadecenoic), linoleic acid (cis,cis-9,12-Octadecadienoic), and linolenic acid (All cis- 9,12,15-Octadecatrienoic), fall on the Figure 1? Plot and indicate their relative locations. Briefly explain why. Temperature ("C)From the given data below, answer the following questions below. Give a brief explanation of your answers in one sentence. 4) Complete hydrogenation of TAG (Y) above would yield a TAG of what fatty acid composition? Enumerate the fatty acid composition with the corresponding percentage. 5) Would the hydrogenation product of TAG (Y) be more like the hydrogenation product of TAG (X) or of TAG (Z)?Select the correct statement about unsaturated fatty acids: 1. Unsaturated fatty acids have extra nitrogen atoms in their hydrophobic tails compared to saturated fatty acids 2. Unsaturated fatty acids have multiply bonded carbons in their hydrophobic tails compared to saturated fatty acids which have only single bonded carbons 3. Unsaturated fatty acids have no bends in their hydrophilic fatty acid tails 4. Unsaturated fatty acids have relatively more hydrogen atoms in their hydrophobic tails compared to saturated fatty acidsMatch lipid structures in column A with its lipid type in column B esters of fatty acids with long chain alcohols one or more double C=C bonds only single C-C bonds glycerol backbone with esters of fatty acids glycerol backbone containing fatty acid esters with phosphate group sphingosine-containing lipid…Examine the membrane lipid pictured below and answer the following questions: a. Is this lipid classified as a phospholipid or a glycolipid? Explain your answer in two sentences.b. Is this lipid considered a sphingolipid or a glycerophospholipid? Justify your answer in two sentences. c. What fatty acid chains are used in this lipid? Are they saturated or unsaturated? What functional group enables them to connect to the backbone?SEE MORE QUESTIONS