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
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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
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- Fatty acids in phospholipids and triacylglycerols interact with one another by (a) disulfide bridges (b) van der Waals interactions (c) covalent bonds (d) hydrogen bonds (e) fatty acids do not interact with one another1. Which one is classified as signaling lipid a. TAG b. Cholesterol c. Bile d. Eicosanoids 2. Which on is compound lipid? a. phospholipids b. coconut oil c. lard d. beeswax 3. What is the functional group in fatty acid structure? a. palmitic acid b. oleic acid c. linoleic acid d. myristic acid1.Why do fat molecules can pack closely together? a. "bends" b. polarity c. length d. linearity 2. 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 3. Which one has to bends in the structure? a. palmitic acid b. oleic acid c. linoleic acid d. myristic acid
- of the following is incorrect about the sphingolipids? a. The backbone is sphingosine which has an amine group to which a fatty acid can be attac ▸ b. The sphingophospholipids have a phosphate group with an alcohol attached c. They are components of membranes Od. The cerebrosides have oligosaccharides as head groups1. Melting point: what happens when the carbon chain length of fatty acids become shorter? increased melting point decrease melting point no change 2. Why do lipids with long chain fatty acids have lower saponification value? they are linear in structure, thus it is difficult to saponify they have lower number of carboxyl group per 1 gram of sample they require less amount of KOH during titration they require less HCL during back titration 3. Halogenation depends on which concept? presence of double bond in the glycerol portion presence of double bond in the fatty acid portion presence of carboxylic acid groups reactivity of potassium ions1. Which one has to bends in the structure? palmitic acid oleic acid linoleic acid myristic acid 2. Which one is NOT a property of glycerol? "backbone" in the simple lipid structure undergoes condensation with three molecules of fatty acids its OH groups reacts with the fatty functional groups of fatty acids it is a water-soluble ester 3. Why do fat molecules can pack closely together? "bends" polarity length Linearity
- 15. Rank the solubility of the following fatty acids in water. A. C<E<B<D<F<A B. A<F<D<B<E<C C. C<E<B<F<D<A D. A<D<F<B<E<C 16. Using the same information in no. 15, rank the solubility of the fatty acids in hexane.* A. C<E<B<D<F<A B. A<F<D<B<E<C C. C<E<B<F<D<A D. A<D<F<B<E<CMatch the following: A. A triglyceride on hydrolysis gives, Fatty 1. Sphingosine +Carbohydrate 2. A non- B. A wax consists of, saponifiable lipid C. Phosphoglyceride consists of, Fatty acid 3. Sphingosine + Phosphoric acid+ Carbohydrate D. A sphingomyelin consists of, membered 4. A set of 3 6- And a 5-membered ring Fused together. 5. Saponifiable E. A glycolipid consists of, lipid. F. A steroid is a special type of ring system Consists of 6. Fatty acids and long Chain alcohols 7. Glycerol, G. A prostaglandin is an example of, Fatty acids+ Phosphoric acids H. Triglycerides, phospholipids and glycol1. These fatty acids contain no double bond along the chain. a. unsaturated fatty acid b. saturated fatty acid c. polyunsaturated fatty acid d. monounsaturated fatty acids 2. The general formula of a fatty acid when completely saturated. a. CnH2n0 b. CnH3n02 c. CnH2n02 d. CnH2n03 3. Which of the following is TRUE about trans- fatty acid? a. It is produced when unsaturated fatty acids undergone hydrogenation. b. Consumption of trans fatty acids is now known to be detrimental to health. c. Major sources includes processed product, fast food products, cakes, and other bakery products. d. All of the above 4. The melting points of even-numbered carbon fatty acids increase with chain length. Furthermore, melting point decreases according to unsaturation. a. Both statements are correct. b. The first statement is correct, but the second statement is incorrect. c. The first statement is incorrect, but the second statement is correct. d. Both statements are incorrect. 5. Which of the following…
- These lipids contain esters and undergo hydrolysis under basic conditions, EXCEPT:a. Waxesb. Triglyceridesc. Steroidsd. Sphingolip;ids1. What biological molecule are required in the synthesis of protein( choose all that apply)? - phosphate ester - fatty acid (s) - alcohol - glycerol - amino acids 2. ATP is generated during A. Aldehyde reduction B. Alkene hydration C. Acetal synthesis D. Polysaccharide hydrolysis 3. What compound( biological classification) would be the result of protein complete hydrolysis in the mouth? A. Fatty acid and glycerol B. Monosaccharides C. Amino acids D. Disaccharide 4. The hydrophobic/ hydrophilic interaction are present in which protein structure level (s) (choose all that apply) ? - secondary - primary - tertiary -quaternary 5. Which protein structural level is/ are affected by the addition of an organic solvent isopropanol? A. Secondary B. Tertiary C. All are affected D. QuaternaryA mixed triglyceride contains: O A. three similar fatty acids esterified with glycerol B. two similar fatty acids esterified with glycerol O C. three different fatty acids esterified with glycerol all of the above 35
