Concept explainers
a.
Interpretation: The structural formulas for the repeating disaccharides unit of following polysaccharide alginic acid should be determined:
Concept introduction: Within biochemistry, a conformational change is a change within the macromolecule’s shape, often induced through the environmental variables. It might alter its shape in reply to the alteration in its environment or the other variables. Each probable shape is recognized as conformation and the transition amid them is known as conformational change.
b.
Interpretation: The structural formula for the repeating disaccharides should be determined for the polysaccharide pectic acid.
Concept introduction: Within biochemistry, a conformational change is a change within the macromolecule’s shape, often induced through the environmental variables. It might alter its shape in reply to the alteration in its environment or the other variables. Each probable shape is recognized as conformation and the transition amid them is known as conformational change.
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Introduction to General, Organic and Biochemistry
- Consider the tetrasaccharide stachyose drawn below. Stachyose is found in white jasmine, soybeans, and lentils. Because humans cannot digest it, its consumption causes flatulence.a. Label all glycoside bonds.b. Classify each glycosidic linkage as αα or ββ and use numbers to designate its location between two rings (e.g., 1→→4-ββ)-c. What products are formed when stachyose is hydrolyzed with H33O++?d. Is stachyose a reducing sugar?e. What product is formed when stachyose is treated with excess CH33I, Ag22O?f. What products are formed when the product in (e) is treated with H33O++?arrow_forwardConsider the tetrasaccharide stachyose drawn below. Stachyose is found in white jasmine, soybeans, and lentils. Because humans cannot digest it, its consumption causes flatulence.a. Label all glycoside bonds.b. Classify each glycosidic linkage as α or β and use numbers to designate its location between two rings (e.g., 1→4-β).c. What products are formed when stachyose is hydrolyzed with H3O+?d. Is stachyose a reducing sugar?e. What product is formed when stachyose is treated with excess CH3I, Ag2O?f. What products are formed when the product in (e) is treated with H3O+?arrow_forwarda) 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).arrow_forward
- 2 Draw the structure of a disaccharide made up of two D-glucose units. The glycosidic bond is α-1,6-glycosidic bond.arrow_forwardSuppose you have two simple sugars, D-arabinose and L-tagatose. Both sugars cyclize and form a non-reducing disaccharide with the glycosidic bond oriented in the alpha position relative to each monosaccharide's structure. Give the full biochemical name for this disaccharide.arrow_forward- a)What is an isomer? b) What is a polymer, and a monomer? Please give examples. (2 points). 3.- Please define monosaccharide, disaccharide and polysaccharide. Please give examples.arrow_forward
- 1 Draw D- glucose in a Fischer Projection. 2 Draw alpha-D- glucose and in the Hayworth (ring ) structure. 3 Draw the hydrolysis of maltose- the disaccharide composed of alpha D glucose molecules. 4 What is the chemical difference between cellulose and amylose NOTE- please dont explain too much explain to the pointarrow_forwardPropose structural formulas for the following polysaccharides. Q.) Alginic acid, isolated from seaweed, is used as a thickening agent in ice cream and other foods. Alginic acid is a polymer of d-mannuronic acid in the pyranose form joined by b-1,4-glycosidic bonds.arrow_forwarda hexose if it has 6 C's, and so forth. ? Explainarrow_forward
- a tetrose if it has 4 C's; What are these ?arrow_forwardDraw the structure of each of the following compounds: a. a polysaccharide formed by joining D-glucosamine in 1→6-α-glycosidic linkages b. a disaccharide formed by joining D-mannose and D-glucose in a 1→4-β-glycosidic linkage using mannose’s anomeric carbon c. an α-N-glycoside formed from D-arabinose and C6H5CH2NH2 d. a ribonucleoside formed from D-ribose and thyminearrow_forwardPropose structural formulas for the following polysaccharides. Q.) Pectic acid is the main component of pectin, which is responsible for the formation of jellies from fruits and berries. Pectic acid is a polymer of d-galacturonic acid in the pyranose form joined by a-1,4-glycosidic bonds.arrow_forward
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