RS configuration of ephedrine

Assign a name to each monosaccharide (Include if it's an alpha or beta and if it's a D or L)

a) Which of the following polysaccharides is a segment of amylose? CH2OH CH2OH CH2OH CH2OH OH OH OH OH ОН H H H OH OH OH ОН Structure I CH2OH CH2OH CH2OH CH2OH OH ОН OH ОН OH OH ОН OH Structure II b) Which one is a segment of cellulose? CH2OH CH2OH CH2OH CH2OH ОН OH OH ОН ОН OH ОН ОН ОН Structure I CH2OH CH2OH CH2OH CH2OH O. ОН ОН OH ОН OH OH OH OH Structure II

Draw the Haworth projection for the following monosaccharide.

answer all please

Structures of monosaccharides are a) polymers b) pyranoses or furanoses c) aldoses or ketoses d)  B and C

a) Draw Haworth projections of both - and -anomers of D-fructose. Indicate which carbon is the anomeric carbon.b) Sucrose is a disaccharide made up of a molecule of D-fructose and D-glucose. Draw the structure of sucrose clearly indicating the linkage between the two monosaccharides and its biological significance.c) Tollen’s reagent is a very mild oxidizing agent which normally oxidize aldehydes but not ketones. However, both glucose and fructose give positive results with Tollen’s reagent and are classified as reducing sugars. Explain how fructose can also give positive results with Tollen’s reagent (illustrate using structures).

Are digitoxin / digoxin composed of one type or more than one type of monosaccharide? How are the monosaccharide derivatives of digitoxin / digoxin classified (alcohol sugar, deoxy sugar, amino sugar, carboxylic acid sugar)? Are the monosaccharides furanose or pyranose rings?

49. The following compound is a(n) нонно H,N-C-ċ-Ѭċ-ċ-OH H;NCH;CH;CH;CH; H A. monosaccharide B. monopeptide C. disaccharide D. dipeptide E. diglyceride

Label each stereogenic center as R or S.  (see in attachment)