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- 5. Arrange the following fatty acids in order from lowest melting point to highest: myristic acid, arachidonic acid, linolenic acid, stearic acid, oleic acid. What do the highest have in common? What do the lowest have in common? 6. There are a wide range of oils and fats used in the culinary arts. Arrange the following in order from least saturated to most saturated: corn oil, lard, butter, canola oil, olive oil, coconut oil.1. 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. Why are eicosapentaenoic acid (EPA) and docosahexaenoic acid (DHA) important? 2. What are the health effects of lipids? 3. What are the benefits derived from omega-3 polyunsaturated fats? 4. Which is better, butter or margarine? Why?
- 1 10. The majority of an adipocyte is made up of 11. The matrix of connective tissue is comprised of and Header 12. The area where epithelial tissue connects to the underlying tissues is called theA suspension of which of the following is most likely to form a liposome? i. Fatty acids ii. Triacylglycerols iii. iv. Sphingomyelins Glycerophospholipids iii & iv O ii & iv O ii & iii O i & ii Oi & ivEssential oils are fat soluble and attracted to lipids and are, therefore, considered: Choose one answer. a. oleophobic b. hydrophilic c. lipophilic d. amphiphilic
- 1. Why are eicosapentaenoic acid (EPA) and docosahexaenoic acid (DHA) important? 2. What are the health effects of lipids?1. 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 acidChoose the correct prosthetic group of the given protein. 1. Carbonic Anhydrase 2. Zinc 3. Glutathione 4. Ovomucoid 5. Albumin 6. Mucin 7. HDL 8. Ceruloplasmin 9. Cytochrome 10. Insulin 11. Enkephalin 12. Chromatin 13. Vitelline 14. Collagen 15. Casein 16. ADH
- 1. Draw the structures of triacylglycerol, cholesterol, phosphatidylcholine, and sphingomyelin. 2. Identify the polar/charged groups and draw how water will orient itself around these groups. 3. Order these lipids from most hydrophobic to most hydrophilic. 4. Predict how the lipids will migrate on the TLC plate when the running buffer is an organic solvent. Keep in mind that although the lipid standards are dissolved in organic solvent, they can (by virtue of their polar/charged groups) interact with the polar silica matrix of the TLC plates.Mild alkaline hydrolysis of glycophospholipids leads to, as major products, 1. Glycerol 2. Glycerol and L-glycerol 3-phosphate 3. Sphingosine 4. Choline O 2 O 4 O 31. What elements do lipids contain? 2. Identify two (2) functions of lipids in the body. Explain each function in 2 sentences. 3. Label the parts of the below lipid molecule. Is this a saturated or unsaturated lipid? I-0- HIC I-0)-I C-C- I ннн H-C-H C-C H-C-I H-C-H I-C-I HH C-C-CH I H с 4 H