2. Draw the condensed structural formula for the triacylglycerol made from 3 saturated fatty acids that are 18 carbons long. Using your diagram from #2 as the reactant, draw the full equation (using condensed structural formulas) for this triacylglycerol undergoing enzyme hydrolysis, using lipase.
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2. Draw the condensed structural formula for the triacylglycerol made from 3 saturated fatty acids that are 18 carbons long.
Using your diagram from #2 as the reactant, draw the full equation (using condensed structural formulas) for this triacylglycerol undergoing enzyme hydrolysis, using lipase.
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- 4. Draw the condensed structural formula for the triacylglycerol made from 3 saturated fatty acids that are 24 carbons long Using diagram from 1 as the reactant, draw the full equation (using condensed structural formulas) for this triacylglycerol undergoing saponification, using NaOH1. The following unsaturated fatty acids can be found in seminal fluid and act on smooth muscles. a.Linoleic acids b.Oleic acids c.Prostaglandins d.Nervonic acids 2. The process involved when fatty acid chains covalently bonded to a glycerol molecule through an ester linkage is? a.hydrolysis b.oxidation c.phosphorylation d.esterification4. What is the role of decarboxylation in fatty acid synthesis? Describe another process discussed in this Biochemistry I course that uses decarboxylation for the same purpose.
- 1. Which of the following is a structural component of a triacylglycerol? a. fatty acids b. glycerol c. both a and b d. neither a nor b 2. Which is TRUE regarding fatty acids? a. It contains a polar hydrocarbon chain. b. It is a component of oils and fats. c. both a and b d. neither a nor b 3. What happens in the stomach during lipid digestion? a. formation of micelles b. hydrolysis of lipids by salivary lipase c. both a and b d. neither a nor b 4. Which process does NOT happen in the small intestine during lipid digestion? a. secretion of bile salts b. formation of micelles c. absorption of long-chain fatty acids by the enterocytes d. a, b, and c are the correct answer. 5. Which of the following describes the enzymatic activity of pancreatic lipase? a. It hydrolyzes the bond between the fatty acids and glycerol. b. It emulsifies the lipid droplet into smaller globules. c. both a and b d. neither a nor b 6. What is the correct sequence of events during lipid digestion? I.…1. By drawing, construct a model of glycerol and three short fatty acids: a four-carbon saturated fatty acid, a four-carbon unsaturated fatty acid, and a five-carbon saturated fatty acid. Perform three dehydration synthesis reactions to produce triglyceride. Research the structure of one steroid of your choosing, and build the steroid. Which functional groups are involved in the dehydration synthesis reactions in Step 2? What are the waste products in this reaction? What are the subunits of a triglyceride? What is the C:H:O ratio for fatty acid chains disregarding the carboxyl?Using your diagram from #2 as the reactant, draw the full equation for this triacylglycerol undergoing saponification, using KOH.
- 3. One of the triacylglycerols found in corn oil contains palmitic acid, linoleic acid, and linolenic acid. During the production of spreadable margarine, all of the double bonds in this triacylglycerol are converted from cis to trans isomers. Linoleic acid: CH3(CH2)4CH=CHCH2CH=CH(CH2)7COOHLinolenic acid: CH3CH2CH=CHCH2CH=CHCH2CH=CH(CH2)7COOH Palmitic acid: CH3(CH2)14COOH a. Identify the unsaturated fatty acid(s) listed above and provide the associated omega designation. b. Draw an accurate representation of the structure of the triacylglycerol present in spreadable margarine. Circle all ester bonds in the structure you have drawn.8. The chemical structure of Coenzyme A contains the following except— a phosphoanhydride moiety. a β-mercaptoethylamine residue. a lipoic acid residue. a pantothenic acid residue. an adenosine-3’- phosphate.1. Which one is NOT a property of glycerol? a. "backbone" in the simple lipid structure b. undergoes condensation with three molecules of fatty acids c. its OH groups reacts with the fatty functional groups of fatty acids d. it is a water-soluble ester 2. Which one has to bends in the structure? a. palmitic acid b. oleic acid c. linoleic acid d. myristic acid
- 1. Compare the β-oxidation of fatty acid with that of the fatty acid synthesis.9 draw an isomer of the triglyceride in sunflower seed oil. Show the reaction and write out the products when this triglyceride is hydrogenated.4. Consider the structure shown below. Give one cycle of the reactions of the - oxidation of fatty acids. Show all the structures of the compounds involved; indicate whether the reactions are reversible or not; show the use or generation of co-factors wherever it occurs.