Part I (15pts). Carbohydrates CH2OH H-C-OH H-C OH HO-C-H HO H-C-OH H-C-OH CH2OH H-C-OH H-C-OH CH2OH...
CARBOHYDRATES POST-LAB QUESTIONS [52] 19. Review the Fischer structures of D-galactose, D-glucose, and D-mannose Identify each structure. [12 pts) CHO CHO CHO Н. -OH HO -H H -OH HO -H HO H HO -H Н. OH H OH HO -H H -OH H ОН Н. ОН CH2OH CH2OH CH2OH D-Glucose D-Mannose TD-Galactose 20. Would either D-galactose or D-mannose form an osazone identical to the glucose osazone? [5 pts] 21. Explain: [5 pts) [5 pts] 22. What structural feature do all...
3. Ribose isan) Carbohydrates a) aldotetrose b) aldopentose c) ketotriose 1. The monosaccharide that is also called blood sugar 4. In the following Fischer projection, which chiral carbon is used to determine whether the sugar is。er L? a) ribulose b) galactose c) glucose d) bose a) The green carbon b) The yellow carbon c) The blue carbon d) The red carbon он но но CH2OH 2. All of the following monosaccharides are aldoses &. In the following Flscher projection, is...
CH2OH O OH HO -H H OH CH2OH D-sorbose Name the two alditols formed when the above sugar undergoes reduction by NaBH4- Alditol 1: Alditol 2: Submit Answer Try Another Version 10 item attempts remaining
4) Take a look at these structures of monosaccharides (3 pts) *CHOH CHOH CH,OH OH CH,OH SH HOM HO OH OH H H OH OH H . H OH GLUCOSE HOH GALACTOSE OH FRUCTOSE What is the molecular formula for the the following monosaccharides? a. glucose: C b. fructose: C c. galactose: C 5) A. Show the anomeric carbon. (1 pts) B. Draw B-D-Fructopyranose (2 pts) Fructose Isomers 6) Identify monosaccharide (M), disaccharide (D) or Polysaccharide (P) (3 pts) a....
3) Which of the following compounds is chiral? A) H Н-С-н н B) H HO C-OH Н C) CH3 HO-C-H Cl D) Br Н-С-ОН н E) C Br- C-C Br 4) In the L- isomer of a Fischer projection of a monosaccharide, the -OH group furthest from the carbonyl is written A) on the left of the top chiral carbon B) on the right of the top chiral carbon C) on the left of the middle chiral carbon D) on...
Carbohydrates are important biomolecules. They are also called saccharides C (H2O) Simple sugars are polyhydroxylated (OH) aldehydes and ketones (C=O). There are multiple classifications, based on length of parent carbon chain, the position of C=0 in chain and the stereochemistry. Complex carbohydrates have multiple simple sugars linked together and polysaccharide are polymers of simple sugars (a) (1) Identify the anomeric carbon in the following structure? Is it in the a or B form? H OH HOTT H OHH OH (ii)...
8. Use the image to answer the questions that follow HO-CH HO-CH2 HO-CH2 CHO H₂o OH CHO CHO OCH CHOICH CH-OH CHCc CHOICH CH 10 | | CH-CH HỒ CH-CH CH-CH CH-CH CH-CH но он но HO он но OH OH HO A B C D Do not e How many carbons does each of the above sugars contain? Name to E n ipo Which sugars are aldoses and which are ketoses? Identify each sugar. Name the linkage for each...
Culhydrates 1. Complete th Complete the table by classifying each sugar sugar (A, B, C, D) below based on carbonyl group and number of carbons (c.8. aldohexose, ketotriose, etc.). Classify them as an antiomer. Indicate the number of chiral carbons for each sugar. Sugar Classification based on carbonyl group and number of carbons Lor D enantiomer Number of chiral carbons н-с-он HO-6-H. н-с-он ін,он CH,OH C=0 HO-C-H н-с-он HO-C-H. ён,он снон c=0 | HO-C-H ін,он H-C-OH CH, OH CD 2....
CHO H-C-OH H-C-OH H-C-OH CH, OH CHO 1 H-C-OH HO-c-H H-C-OH H-C-OH CH, OH CHO H-C-OH HO-C-H HO-º-H H-C-OH CH,OH CH,OH CEO HO-C-H H-C-OH H-C-OH CH,OH D A B с Which of the sugars in the figure above is an ketopentose? C B None of the choices are correct. D A
2) Answer the following questions about the structures below (structures are numbered 1,2,a to be able to clearly ID them in your answers): CHO ÇHO CH-OH H-C-OH H-C-OH Ç= 0 HO-C-H . HO-C-H HO-C-H HO-C-H H—C—OH H-C-OH HO-C-H H-C-OH H-C-OH 1) CH2OH 2 CH OH CH OH A) ID each as an Lor D sugar B) List any pairs which are stereoisomers C) List and pairs which are enantiomers D) Choose one (indicate number of compound) and numbering from the...