Draw the Haworth structure for alpha and beta-D-Arabinose.
Use the Haworth projection to draw D-ribose in the beta-furanose and alpha-pyranose forms.
Draw the structure of the polysaccharide alpha-D-Glucopyranosyl- 1-> 3- beta-D-mannopyranosyl – 1->6 - alpha-D-fructopyranose in the chair and Haworth configuration, showing the appropriate glycosidic linkages. Does this polysaccharide have free anomeric hydroxyl groups? If so, circle them in the structure you have drawn.
Draw the Haworth projections (cyclic forms) of L form along with alpha and beta of each of the following: Glucose (glucopyranose), Mannose (mannopyranose), Galactose (galactopyranose), Fructose, Fructofuranose, Fructopyranose
Identify the monosaccharides: Choices are: alpha or beta - d - galactose alpha or beta - d - glucose alpha or beta - d - xylose alpha or beta d - arabinose Identify the monosaccharides. CH2OH o ОН "о он ОН ОН ОН B-D-glucose B-D-glucose C. ОН CH2OH —о. WOH ОН ОН OH ОН none of the above a-D-galactose
In the following haworth structure of D-fructose, identify the isomer? HOCH, CHOH H HO ОН OH H A. alpha isomer B. A ketotetrose C. beta isomer D. ketopentose E. beta - alpha isomer
Draw the cyclic Haworth projection of the beta-furanose form of D-fructose. Show the mecahnism behind it.14 (2).pdf
Draw the Haworth projection of alpha-D-galactose by labeling the pyranose ring. The anomeric carbon is shown. Labels may be used more than once.
Sugars a. Draw the following: alpha-D-altropyranose beta-D-xylofuranose beta-D-psicofuranose beta-D-idosamine alpha-D-taluronate L-gulonate N-acetyl-alpha-D-mannosamine
Draw the Haworth projection of beta-D-fructose by labeling the furanose ring. The anomeric carbon is shown. Labels may be used more than once.
2. Convert each sugar below to its Haworth form. Draw the alpha anomer for a, the beta for b. CH OH c=0 но-с-н HO-c-H H-C-OH a. CH OH u-u-u-u-u- III н-с-он Сн,он