common and short-hand notation Name the following Fatty Acids using their systematic_ 1. CH3(CH2)5CH=CH(CH2)¬COOH 2. CH3(CH2)7CH=CH(CH2)7COOH 3. CH3(CH2)10COOH 4. CH3(CH2)16COOH 5. CH3CH2(CH=CHCH2)3(CH2)6COOH
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- Tridecane [CH3(CH2)11CH3] is a major component of the repellent that the stink bug Piezodonis guildinii releases from its scent glands when attacked. What fatty acid gives tridecane on decarboxylation?Lauric acid, a 20-C saturated fatty acid. Use only 1 mole:1. How many rounds of beta-oxidation are needed to oxidize the fatty acid? Show your solution.Consider the following fatty acids: (i) 16:0; (ii) 20:0 and (iii) 20:4 A5,8,11,14. Rank them according to their liquidity at room temperature starting from the lowest to highest. O (ii) , (ii) , (1) O (ii) , (i) , (ii) O (1), (ii), (i) O (ii) , (1), (ii)
- i. How dihydroxyacetone phosphate is formed from glycerol? Write the chemical reactions. a& ii. What product is formed by the reaction of B-glucose with ATP? OH HO Ho Hexokinase OH ATP OH OH Glucose iii. Why saturated fatty acids haye high melting points than their unsaturated counterparts? naà k7The main fatty acid component of the triacylglycerols in coconut oil is lauric acid, CH3(CH,)10COOH. Explain why coconut oil is a liquid at room temperature despite the fact that it contains a large fraction of this saturated fatty acid. 2.Myristoleic acid is a monounsaturated fatty acid found in small amounts in a variety of foods. Calculate the net ATP yield from the complete β-oxidation of myristoleic acid. The formula of myristoleic acid is shown below (it is assumed that the total ATP production is the same for both saturated and unsaturated fatty acids having the same carbon chain length). CH3-(CH2)3-CHCH-(CH2)7-COOH (Given: The oxidation of one NADH yields 2.5 ATP; the oxidation of one FADH2 yields 1.5 ATP; and the oxidation of one acetyl CoA yields 10 ATP. ) Group of answer choices a. 96 ATP b. 92 ATP c. 94 ATP d. 34 ATP e. 36 ATP
- Rank the melting points of the following fatty acids from highest to lowest: (1) cis-oleic(18:1) (original cis configuration) (2) trans-oleic (18:1) (transformed to trans configuration) (3) linoleic (18:2) (4) stearic (18:0) (5) palmitic (16:0)The biosynthesis of vitamin D₂ is a two-step reaction, requiring two types of concerted pericyclic reactions. Draw in the arrows for each step and identify the structure of precalciferol. If an electrocyclic reaction is required, identify if it occurs through a conrotatory or disrotatory reaction. HO H H ergosterol hv precalciferol Cast HO ergocalciferolSaponification values of oils X and Y differ by 100 and 70, respectively, because to differences in their composition. Which oil will have a high molecular weight and a long fatty acid chain, and which one will not?
- Match the structures and common names of the three fatty acids to their systematic names. cis-A -Hexadecenoate Coo palmitoleic acid lauric acid n-Dodecanate Answer Bank COO 12 cis, cis-A, A -Octadecadienoate linoleic acidDeduce the structure of the disaccharide trehalose from the following data. Trehalose is the "blood sugar" of the insect world. It is found in bacterial spores, fungi, and many insects whose natural environment has large variations in temperature. [1] Hydrolysis yields D-glucose exclusively. [2] Trehalose is hydrolyzed by a-glycosidase enzymes. [3] Trehalose is a nonreducing sugar. [4] Methylation with excess CHạI, Ag,0, followed by hydrolysis with H3O*, forms only one product: LOCH3 CH;0 CH;O- (both anomers) OH OCH,4- Salicylamides are inhibitors for an enzyme called scytalone dehydratase. SAR shows that there are three important hydrogen bonding interactions. Explain whether you think quinazolines could act as a bioisostere for salicylamides. HBA OH O 00 N NHR Quinazolines Salicylamides Ph HBA 5- Structure IX (X = NH) is an inhibitor of a metalloenzyme called thermolysin and forms interactions as shown. Explain why the analogue (X = O) has reduced binding affinity by a factor of 1000 and why the analogue (X = SH) has roughly the same binding affinity. Structure IX H HBD Ala-113 R
