A identical structures B C enantiomers diastereomers D constitutional isomers E non-isomeric What is the relationship between these two sugars? CH₂OH :O CH2OH H- -OH H .OH HO H H- OH HO -H H .OH CH₂OH CH2OH >>> A B C identical structures enantiomers diastereomers
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- Two sugars differing in configuration at a single asymmetric carbon atom are known as epimers. D-mannose is a C-2 epimer of glucose (Structure I), while D-galactose is a C-4 epimer of glucose. Structure Il and IIl are H- -OH но- -H H OH HO H но- H HO H H -OH H- -OH HO OH H -OH H- -OH H OH HO. HO, OH II II Which of the following represents an aldopentose? OH H O HO O HO H но н HO H но- HO H HO H HO- H OH H OH H OH H OH OH HO Он of но" HO O OH он III IV These are chemical messengers that are secreted by endocrine glands and carried through the bloodstream to target tissues. prostaglandin deoxysugar glycoside hormones Which of the following is NOT correctly paired? cellulose: beta-1,4-glycosidic linkage amylose: alpha-1,4-glycosidic linkage chitosan: alpha-1,4-glycosidic linkage cellubiose: beta-1,4-glycosidic linkageWhich of the following pairs of structures represent a pair of enantiomers? a. b. C. d. O a O b Oc C Od H3C... H Br C HC NC H3CH₂C COOH H... C CN CH3 Br HC H₂N CH3 OH COOH CN HC-CH3 Br Br H.C. HOOC OH H... C H₂C CN H3C C H₂N CH₂CH3 COOH HIdentify the relationship between the following compounds. H3C COOH ; HOOC CH ОН enantiomers diastereomers H™ HI!.. HO O achiral O No answer text provided. CH3
- Use your knowledge of condensation reactions to complete the following tasks. Protein: Draw a condensation reaction where a molecule of cysteine combines with a molecule of lysine, showing all reactants and products, and labeling a peptide linkage in your final product. Make sure the structures you draw include all hydrogens (leave every bond labeled and included in your drawing; don't use shorthand). Carbohydrate: Draw two ringed a-D glucose monomers forming a disaccharide (maltose). Make sure to label the glycosidic linkage formed.CH₂CH₂CCH₂CH₂CH, H₂O Br₂ tert-BUO CH₂CH₂CH₂CH₂Br CHỊCH C—CH CHỊCH; CH₂CH₂CH₂CH.Br CH₂CH3 tert-BuO CH₂CH₂CH=CH₂ H₂O NaNH, CH3CH₂Br -CH₂CH₂CHCH₂ CH;CH C=CCHỊCH, Br excess H₂SO4 Re H₂SO4 CH;CH,C=CH CHỊCH C=CIdentify the relationship between the following structures. OH Oenantiomers O identical O neither OH
- 2. How is each compound related to the simple sugar D-erythrose? Is it an enantiomer, diastereomer or identical? ОНС HO HOH C НО НОН С A с он E ОНС. CH₂OH OH CHO ОН CHO OH он OH D-erythrose CH₂OH ОНС НО HOH2C HO HOH C B D OH CH2OH ОН F CHO ОН CHO онSH CH2 CH2 NH H CH, This structure plays an important role in the synthesis of H. c-CH,-CH,-N-C-c-c-CH2-O 0-5-0- %3 ö o ČH, H O glycogen from glucose 6-phosphate. O fatty acids from acetyl coenzyme A O glucose from pyruvate. O glyceraldehyde 3-phosphate from fructose. O ATP from ADP and inorganic phosphate.how Could we, PreDaled the clo- Compainds! [-haxartheme CH2-G-C CH-6-SH
- Which compounds shown below are meso-compounds? F A B D O 1. Compounds B and C. O2. Compounds C and D. O 3. Compounds A and D. O 4. Compounds A and B.FOR/ • Ang • Tors • Ster O what structural cfects do the ff. opds exhivit? Enumate all. Then idenbify the pred ommant effect. (a) 언 NO2 (c) 1.4 S ElecClassify the structures as being either an enantiomer, diastereomer or diastereomer/epimer of D-glucose. Structure A: CH H- -OH Structure B: но- H- H- OH Structure C: H- он H- -H D-Glucose: OH || CH CH CH он H- он но -H H- он но он но но- H- но H- OH OH но -- H- -H H -Ç-H Structure A: OH Structure B: OH Structure C: OH