Draw the α anomer of the branched pentasaccharide that has three glucose molecules connected by α 1→4 glycosidic bonds and two α 1→4 linked glucose molecules connected to the reducing end by an α 1→6 glycosidic bond.
Draw the α anomer of the branched pentasaccharide that has three glucose molecules connected by α...
Draw the following molecules (two dimensional representations; stereochemical view not required): Three glucose (Haworth projection) disaccharides linked as follows: (i) alpha-1,4-glycosidic bond; (ii) alpha-1,6-glycosidic bond; (iii) beta-1,4-glycosidic bond.
? 3. An unusual disaccharide has two glucose molecules linked in a 1-l'alpha bond. Is this a reducing or non-reducing sugar? Explain.
49. Which of the following is true of the biologically important molecules ADP, AMP, and ATP? A. all are both phosphoric anhydrides and phosphoric esters B. ADP and AMP are both phosphoric anhydrides and phosphoric esters, but ATP is only a phosphoric ester. C. AMP and ATP are both phosphoric anhydrides and phosphoric esters, but ADP is only a phosphoric ester. D. ADP and ATP are both phosphoric anhydrides and phosphoric esters, but AMP is only a phosphoric ester. 45....
PLEASE HELP !!!! Sephadex& is a commercially produced branched homopolysaccharide. It contains alpha- glycosidic linkages at carbons 2, 3, 4, and 6. The degree of cross-linking at those carbons can be controlled, yielding holes within the polymer of known size. 2. a. What lab method (which we learned about in class) can use such a molecule? b. Explain how this method works. c. What is the monosaccharide from which Sephadex® is made? d. Draw the disaccharide formed when 2 units...
please # answes Glucose molecules are joined by a B(144) glycosidic linkages in (1) amylose. (3) glycogen. (2) amylopectin. (4) cellulose. The structure of any lopectin is a (1) linear chain of many D-glucopyranose units linked a1 4). (2) branched structure of many D-glucopyranose units linked a( 1 4) and a( 1 6 ). (3) branched structure of many D-glucopyranose units linked B(1 4) and B( 1 6 ). (4) linear chain of many D-glucopyranose units linked a1 6 )....
need help! 21. The following sugars condense to form an α(1-4) glyosidic bond. Using the Haworth templates below, neatly number the carbons and draw in the new glycosidic bond OH он но H OH H OH 22. When fructose cyclizes, it forms a hemiacetal. Complete the structure for the a-fructose anomer CH2OH HO OH он CH2OH D-fructose Chem 1050 Exam 2 review problems 23. What are the products when the following two molecules undergo a condensation? 24. What are the...
7. Trehalose contains two a-glucose units linked by a (1-1) glycosidic bond. Draw its structure as a Haworth formulation. 3. Benedict's reagent is used to detect what? What does a positive result for this test look like? 4. Tollen's reagent is used to detect what? What does a positive result for this test look like?
OPM Tue 28 orien.eu Part 1-Carbohydrates 1. Lactose is a disaccharide formed from galactose and glucose. CH, OH H O OH CH,OH H OH H OH -0 H Он H OH Н Lactose H OH a. Describe the glycosidic bond of lactose. b. Draw the two monosaccharides that result when the glycosidic bond is hydrolyzed. 2. Draw the disaccharide maltose that forms when two a-D-glucose molecules condense forming an a( 14) glycosidic bond.
n 6. The glucose molecules in cellulose are linked together by what type of glycosidic bond (or linkage)? 1. Convert the following D-sugars (shown their chair conformations) into their Haworth formulations & Fischer projections. Н % ОН НО CH2OH но. ОН НО ОН Н Н — НО НО H Haworth МАСА Fischer Н Н HO CH2OH Lo -ОН Н -OH НО НО — H НО он Н Haworth CHCH Fischer
1. Maltose, trehalose, and cellobiose are all disaccharides of glucose that differ in the nature of the glycosidic bond attaching the two glucosyl residues. In maltose, the linkage is α(1→4); in trehalose, the linkage is α(1→1); in cellobiose the linkage is β(1→4). Based upon this information,which of these disaccharides is a non-reducing sugar? Explain your reasoning. Which of these disaccharides results from the breakdown of cellulose? Explain your reasoning. Which of these disaccharides results from the breakdown of amylose? Explain...