1) Below you are given the structures of the disaccharides lactose and trehalose.ононноонноноOHноноOHноонноноOHLactoseTrehalosea. Identify clearly the hemiacetal and acetal groups in these disaccharides and determine for eachof these identified groups if they have a- or B-configuration.b. Identify (name) each of the following two monosaccharides A and B.OHНоHO-OHOHHO-HOOHНоBA

Lets first assume that all the carbohydrates given here are D isomers , cause that the general case…

Answered: 1) Below you are given the structures…

Biochemistry

9th Edition

ISBN:9781319114671

Author:Lubert Stryer, Jeremy M. Berg, John L. Tymoczko, Gregory J. Gatto Jr.

Publisher:Lubert Stryer, Jeremy M. Berg, John L. Tymoczko, Gregory J. Gatto Jr.

Chapter1: Biochemistry: An Evolving Science

Section: Chapter Questions

Problem 1P

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b. Identify (name) each of the following two monosaccharides A and B. НО ОН ОН По A ОН -ОН но- Но Но ОН в ОН c. The disaccharide lactose is built up by one D-galacto-and one D-gluco monosaccharide unit. Draw L-galactose in the Fischer projection (open) form and in its most stable pyranose ring conformation form and determine if the latter is a ¹C4 or a 4C₁ conformation.
Identify the name of each of the structures of sugar and identify as reducing or nonreducing sugar. One of the structures may be not identified from the usual structures of disaccharides. Kindly answer a, b, c, and d.You only identify the name of each structure of sugars and identify as reducing or nonreducing sugar. No explanation needed.
a. Is the disaccharide below a non-reducing sugar? yes or no b. The glycosidic linkage in the disaccharide is what β-(1-2) linkage, α-(1-2) linkage, β-(1-4) linkage, or α-(1-4) linkage? c. The products of hydrolysis of the disaccharide (which of the ff.) α-galactose and α-ribose α-glucose and α-fructose α-fructose and α-galactose α-glucose and α-galactose
Can you please identify the name of each of the structures of sugar and identify as reducing or nonreducing sugar of a,b,c and d? The picture is posted. One of the structures may be not identified from the usual structures of disaccharides.
1) Please list all glycosidic linkages between each monosaccharide units. For example, α(1→4)2) Please discuss whether these oligo/polysaccharides would be reducing or non-reducing sugar. Remember to state your reasoning in complete sentence.
Consider the following statements: (1) The term sugar is a general designation for both monosaccharides and disaccharides. (2) The "penultimate carbon" in a monosaccharide is used to determine D- or L-configuration. (3) Sucrose is a reducing sugar and lactose is a nonreducing sugar. O Two of the three statements are true. All three statements are true. O Only one of the statements is true. None of the statements are true.
Write the name for the trisaccharide depicted below (for example, of the form a - D - xylofuranose). Be sure to include if the sugars are in the pyranose or furanose conformations in the name and include the linkages between sugars (for example, (2 - - > 4)). CH₂OH ОН OH н ОН -CH₂ H\H ОН н н ОН CH2OH н ОН но н н ОН
Rhaminose is a trisaccharide comprised of fructose (B(2→1), fructose (B(2→1) and glucose. Draw the trisaccharide with the hexose in its chair conformations. Indicate the anomeric carbons, the non-reducing end and any other structural details of interest.
For disaccharide b, give the monosaccharide units produced by hydrolysis, the type of glycosidic bond, and the name of the disaccharide, including a or 8. CHOH CH,OH H. OH H. HO Match the words in the left column to the appropriate blanks in the sentences on the right. Reset Help galactose and fructose When the disaccharide is hydrolyzed, the monosaccharide units that are produced are two molecules of fructose two molecules of glucose The type of glycosidic bond shown for the disaccharide in thin part is 8-1,4 The name of the disaccharide including a or A in B-1,2 a-1,4 a- 1,2 a-lactose B-lactose a-maltose B-maltose
From the following monosaccharides, identify the a anomers. Select all that apply. Select one or more: OH он OH OH O a. OH OH HO но- Ob. ÓH H OH HO но- он H OH O c. HO OH ÓH ÓH d.
Many bioactive compounds are derived from amino acids. This compound, found in trace amounts in mammalian brains and hypothesized to play a role as a neuromodulator or neurotransmitter, is derived from an amino acid through removal of the backbone carboxylic acid group. The amino acid from which it is derived must be: (Write out the entire name; Spelling matters, but case does not; Do not include L- or D- in the name; For acidic amino acids write the full name, e.g. “so-and-so acid”)
Referring to the structures in Figures 28.4 and 28.5, classify each pair of compounds as enantiomers, epimers, diastereomers but not epimers, or constitutional isomers of each other. a. D-allose and L-allose d. D-mannose and D-fructose b. D-altrose and D-gulose c. D-galactose and D-talose e. D-fructose and D-sorbose f. L-sorbose and L-tagatose

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