If mevalonate labeled with 14C in the carboxyl carbon were administered to rats, which carbons of cholesterol would become labeled?
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- If phenylalanine was not an essential amino acid, would diet therapy (the elimination of phenylalanine from the diet) for PKU work?Draw the structures of the products formed by hydrolysis of the following tripeptide at physiological pH. Val-Gly-Ile Note: Reference the Naturally occurring amino acids data table for additional information.Name the following fatty acids by the symbol (C:B)
- In solution, glucose exists predominantly in the cyclic hemiacetal form, which does not contain an aldehyde group. How is it possible for mild oxidizing agents to oxidize glucose?Draw the structure of a triacylglycerol containing stearic acid, palmitic acid, and oleic acid.Refer to the given lipid structure: CH,(CH,),,CH=CH-CH-OH CH,OH QH CH-NH-C-(CH,),,CH, CH2 OH 1. Explain what kind of product is formed if NAOH is added to a triglyceride? Discuss the principle of how the product can help in the fight against coronavirus. 2. Discuss why a saturated fatty acid like coconut oil has a good antioxidant property. 3. What are essential fatty acids? Cite some clinical signs of essential fatty acid deficiency. 4. why are essential fatty acids associated with a low incidence of heart disease? 5. what are the physiological effects of prostaglandins? Explain how aspirin can block the synthesis of prostaglandins? 6. In terms of structure, how is cholesterol different from bile salts? Cite causes of bile duct obstruction and symptoms. 7. Explain the cell membrane's lipid bilayer. What are the lipids found in the cell membrane? 8. Differentiate between passive and active transport movement of molecules across the cell membrane
- A cholesterol sample is prepared using acetyl-CoA labeledwith 14C at the carboxyl group as precursor. Which carbon atomsof cholesterol are labeled?Draw the structure of two different aldohexoses that yield the followingaldaric acid when oxidized with HNO3. Use Figure to name eachaldohexoseGive the name of two Molecules of Farnesyl Pyrophosphate:
- The 6-member pyranose ring of glucose is formed through the interaction of the hydroxyl group on C5 with the aldehyde group What kind of ring is formed when the hydroxyl group on C4 attacks instead? Draw the Haworth projection of the products with all the carbons labelled accordingly and name them Why would ring formation through C6 or C3 be unfavorable?The net charge on the most prevalent form of bisphosphoglycerate in blood is what?Give the lipid number for the following fatty acid:
