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- _______ groups are the acid part of amino acids and fatty acids. a. Hydroxyl (OH) b. Carboxyl (COOH) c. Methyl (CH3) d. Phosphate (PO4)Lactose is a disaccharide formed by the formation of a bond between glucose and glycosidic; lactose glycosidic; galactose hydrogen; sucrose hydrogen; fructose1. Construct the two enantiomeric forms/structure of the following monosaccharides and designate the handedness of each using D, L system 1. Ribulose
- A monosaccharide that consists of 5 carbon atoms, one of which is in a ketonegroup, is classified as a(n) ________. Question 15 options: aldohexose ketopentose ketotetrose aldopentose aldotetrose2. The C-C bond angles for the ring in M2 is: 60º 109.5º 120º 180º1. What is the identity of the monosaccharide components of the tetrasaccharide: A. B. C. D. 2. Give the Haworth structure of the tetrasaccharide
- 22. All of the following are examples of disaccharide, EXCEPT: * A. maltose B. sucrose C. raffinose D. lactose2. a. What ingredient(s) necessary to white chocolate does this product have? b. Why is this product labeled as “white chocolate style” instead of being simply labeled as “White chocolate”?I. True or False. Write the word “reducing” if the statement is correct, otherwise write “non-reducing”. ____________1] Mutarotation affects the reducing property of carbohydrates. ____________2] Anthrone test can be use to test for the helical configuration of a polysaccharide. ____________3] Upon treatment with phenylhydrazine reagent & hydrolysis, maltose gives glucuronic acid and glucosazone. ____________4] Xylose gives a positive result with Molisch’s, Seliwanoff’s, & Bial’s-Orcinol tests. ____________5] Aniline-acid oxalate can be use as a mobile phase for the development of the chromatogram. ____________6] Ethanol (95%) & 10% TCA are used to precipitate glycogen from the solution. ____________7] Salivary amylase can be use to hydrolyze 1,4 glycosidic bonds of cellulose. ____________8] Lobry de Bruyn-van Ekenstein Transformation take place when a sugar is treated with a strongly basic reagent. ____________9] Ribulose yields 5-hydroxymethylfurfural upon treatment with…
- 1. Define and give there functions a. Carbohydrates b.polysaccharidesWhat is unusual about the structure of N-acetylmuramic acid (Figure 16.18) compared with the structures of other carbohydrates12. The sugars glucose, fructose, and inositol all have the same formula i.e. C6H12O6 yet they have 3 very similar but different structures. This is an example of: a) geometric isomers b) structural isomers c) stereo isomers d) none are correct