Identify the chiral carbon atoms in each structure. If no chiral carbon atoms are present write: "None present". a) 1 2 3 4 LO 6 b) 8 10 7 CI 9 7 6 5 4 13 CI 2 1
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- Identify the conjugate acids and bases in the following pairs of substances. (CH3)3NH / (CH3)3N *H3NCH2CH,C00 / H2NCH;CH2COO OOCCH,COOH/ 00CCH2CO0In an anomeric pairs of monosaccharides, the b form has the —OH below the ring. A) True B) FalseHere are the SALCS group orbitals of the two F atoms in XeF2. Using the D2h character table, assign the symmetry symbol for the labeled SALCS #3 and #8. #1 #2 ・ O O 800 6 F #3 St 5. #5 #7 8 O #4 #6 2·脚·· · #8 8 F Xe F 8 # 3 is Ag and #8 is B3g O #3 is Blu and #8 is B2g O #3 is Ag and #8 is B2u O#3 is B1g and #8 is B1u # 3 is Blu and #8 is B3g F
- (A) What are Waxes? Draw the structure of wax, which is made up of palmitic acid (16:0) and a saturated 18-carbon alcohol. (В) Consider the structure of menthol. How many isoprene units are present in menthol? (C) What type of isoprene linkage (head-to-tail or tail-to-tail) is present in menthol? Identify the isoprene linkage in the following structure of menthol and indicate by a circle. Menthol =CONH, HQ NH (CH)3C a.) Put asterisk on chiral centers b.) label each chiral center as R or S. c.) Draw the enantiomer d.) Draw one diastereomerÕH CONH2 NH 1. a.) Put asterisk on chiral centers b.) label each chiral center as R or S. c.) Draw the enantiomer d.) Draw one diastereomer I ZI IZ
- Threonine has two chiral centers. Draw L-threonine and indicate which carbon atoms are chiral. Which carbon atom is responsible for d and L configuration?Indicate the following for each disaccharide: I) type of glycosidic linkage i.e. a(1→4) II) configuration i.e. alpha or beta 1. OH CH₂OH 0 OH I) II) III) IV) OH CH₂OH -0 OH ОН OH 2. HO CH₂OH 0 I) II) III) IV) ОН HOCH2 ОН HO ОН CH₂OH 3. CH, OH CH2 О CG OH ОН HO ОН HỎ I) II) III) III) reducing or non-reducing sugar IV) name of each monosaccharide IV) OH OH 4. HO I) II) III) IV) CH₂OH OH 0 ОН CH₂OH OH ОН OHIndicate the following for each disaccharide: I) type of glycosidic linkage i.e. a(1→4) II) configuration i.e. alpha or beta 1. ОН CH₂OH OH I) II) III) IV) 0 ОН 0 CH₂OH OH ОН OH 2. HO CH₂OH I) II) III) IV) ОН HOCH₂, OH ·0 НО 0 ОНА CH₂OH 3. HO I) II) III) IV) CH OH OH O ОН III) reducing or non-reducing sugar IV) name of each monosaccharide HO CH₂ ОН OH ОН 4. HO I) II) III) IV) CH₂OH 0 OH ОН CH₂OH OH О ОН ОН
- Glutathione, a powerful antioxidant that destroys harmful oxidizing agents in cells, is composed of glutamic acid, cysteine, and glycine, and has the following structure. a.) What product is formed when glutathione reacts with an oxidizing agent?b.) What is unusual about the peptide bond between glutamic acid and cysteine?Convert the following Fischer structures into cyclic Haworth structures:(a) Identify the base and monosaccharide in the following nucleotide. (b) Give the name and three- or four-letter abbreviation for the compound.