4. Complete the Ruff degradation scheme for D-ribose. Сно Н -ОН Н. Он Н OH CH-он...
QUESTION 7 Identify the relationship between the two molecules below. сно он н он н -сно H-OH HOH сн,он A. Diastereomers B. Constitutional isomers C. Enantiomers D. Same molecule E. Same molecule & meso
11.a) Draw the open chain (Fischer) structure of D-altrose. (1pt) (b) How many chiral centers are in D-altrose? ______ (1pt) (c) What is the maximum number of possible stereoisomers whch can exist for D-altrose? _____ (1pt) (d) Draw L-altrose in open chain form (use Fischer projection) – you may use the space above. (1pt) (e) Use the information above to draw a Haworth projection for alpha-D-altropyranose. (2pt) Ruff degradation on a monosaccharide causes C1 to be lost as carbon dioxide,...
он ОН Н о, он не о, он н . Он он Он н Ribose Deoxyribose For the monosaccharides above, draw hydrogen bonding using arrows to indicate H+ accepting or donating- w g 91 Draw the following structures: Ribose 5-P 929 Ribose 2-P Ribose 3-P Ribose 2,3-P (hint there is only one phosphate)
These monosaccharides are CH,OH CH,OH H ОН НО НО H ОНОН Н. ОН 1 Н НО Н. H Н H H H ОН.
30. Which of the choices below is the enantiomer of D-glucose? сно сно нон HO-EH сно на-он D-glucose Іно-Ен н -он но-Ен EH,OH сно но н-он но -н нон Сн,он но-Ен на-он но -н но-Ен н -он нон CHO но -н н-он но-Ен нон снен CHOH Сн,он 3. Which of the following structures is an a-anomer? Сн,он —о, он o ноноон нонс осн он — о оно сн, он он онон он он он он тон КСн,он y CH, OH...
7. For the following monosaccharides, give the corresponding Fischer projection. CH OH —0 ОН CH,он Но —0 ОН НО У (он но У HO сно F 8. For the following monosaccharides, give one possible Haworth structure. CHO H- OH HOH Нонн — он нон CH OH CH OH от т т н-
Select the product for the following reaction: HO+H нон нон н +он CH,OH он ноо нонно он нон HO+H нон н+он н+он нон н он н +он нон нон н-он нон нон CH OH сн,он CH OH CH,OH 4 оооо
20. Draw the hydrolysis product of the following polysaccharides (show reagents also): сно CH, OH сно онон СНЫ CH OH CH OH -ООН ОН СН,ОН он, ОН ОН ОН 21. Which one of the two molecules above are reducing sugars before the reaction? Explain.
NADP+ NADPHH HC-OH HO-CH HC-OH нс-ОН CH2OPO;? 6PGDH 'Coz CH OH c=0 HC-OH HC-OH CHOPO3 In pentose phosphate pathway, 6-phosphogluconate undergoes oxidation and decarboxylation by 6- phosphogluconate dehydrogenase (6PGDH) to form D-ribulose 5-phosphate. The reaction generates NADPH, as shown in the scheme. (1) Fill the blanks. During the 6PGDH-catalyzed reaction, the A group of carbon (B) of 6-phosphogluconate is oxidized to the group in ribulose 5-phosphate. A: (name of the functional group). B: (carbon numbering) C: (name of the functional...
Describe the relationship between these two molecules OH CH,CH, ОН НО — Н Н -CH₃ НАС сн, он