2. Name the disaccharide (shown at right) formed by glycosidiclinkage of D-Glucose and D-Fructose.●Name this disaccharide:Do you expect this disaccharide to be a reducing sugar?Briefly explain.OHHOCH₂HCH₂OHIHOHHHHOOH HHOOHHCH₂OH

Carbohydrates are organic molecules that act as the major source of energy for the body.…

Answered: 2. Name the disaccharide (shown at…

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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1. Below are two isomers of mannose. Classify this sugar based on sugar number. Is this sugar an aldose or a ketose? Indicate which sugar is in the D conformation and which is in the L confirmation. Are these sugars enantiomers or diastereomers? H но-н НО- -Н Н- -ОН Н -ОН CH2OH Н- ІІ НО НО I OH -ОН Н– -Н CH₂OH =1
Which of the following is/are reducing sugar/s?why? A CHOH CHOH CHOH OH OH CHOH OH CH,OH OH OH он C CHOH OH CHOH CHOH HỌ CH2OH OH OH OH OH ÓH u tte Select one: O a. Conly, it is a monosaccharide with a free carbonyl group O b. A and B only, both disaccharides are made from aldoses O C. B, C and D, they have at least one free carbonyl group O d. A and D only, both disaccharides are made from ketosis O. e. B and D, each has a free carboxyl group
D-Glucose and D-Galactose are A H D C=0 H-C-OH OH C-H H-C-OH H_C-OH CH₂OH D-Glucose ketoses epimers pentoses enantiomers H ... н-с-он OH-C-H он-с-н H-OH CH₂OH D-Galactose
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.
Which of the following statements is correct regarding the structures below? CHO CHO H-OH ОН н ОН НО H НО -Н н- ОН CH₂OH CAB All are structures of D-sugars. All are structures of ketohexoses. Only CAR is a monosaccharide. 0 Only CAP is a L-sugar. Н I H CHO -ОН H-OH H-OH н- -ОН CH₂OH CAR H-OH -ОН НО-Н то н- H-OH CH₂OH CAP CH2OH to HO-H НО-н Н 1 - он CH₂OH CAT
Which of the following statements is correct regarding the structures below? CHO CHO CHO -Н НО H НО н- ОН -Н - ОН CH2OH CAB All are structures of D-sugars. All are structures of ketohexoses. Only CAR is a monosaccharide. O Only CAP is a L-sugar. -ОН -ОН H-OH H-OH H- ОН CH₂OH CAR но-н H-OH н НО т н-он CH₂OH CAP CH₂OH Fo НО-Н H НО-Н H он CH₂OH CAT
Shown here is a monosachharide. How many total forms of this sugar are there? 1 CHO H-2 он н-3 он на I I H4OH + 0 0 0 0 8 2 5CH₂OH 16
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
Which of the following sugars is a non-reducing sugar? CH,OH CH,OH H/H H H/H H (i) HỎ он H OH OH ÓH OH CH,OH H/H H HOH,C H (ii) HỎ он H -어 OH CH,OH ОН OH CH,OH CH,OH HO H HO/H он (ii) HOH он H. H. ОН ÓH CH,OH CH,OH H/H H/H (iv) HO OH H, H. OH H. ОН H
1. The figure below shows the Fischer projection of an L-aldohexose. T or F O. НО H- Но H- Но- ČH2OH Naturally occurring saturated long-chain fatty acids are usually in trans- configuration. 2. T or F 3. N-acetylglucosamine is commonly found in glycosaminoglycans. T or F 4. The isoelectric point of isoleucine is lower than that of histidine. T or F 5.. At pH 7, all amino acids stop migrating in isoelectric focusing. T or F 6. The following amino acid is a L-valine. T or F СООН H-NH2 CH-CH3 CH3 7. Salting out is a process to remove salts from proteins. T or F 8. There are five carbons in a pyranose ring. T or F 9. Hydrophobic interaction can be found in protein and DNA. T or F RNA is a polymer consisting of nucleosides joined together by phosphodiester bonds. 10. T or F 11. There are 3.6 base pairs in one turn of DNA helix. T or F
Indicate whether each of the following monosaccharides would be classified as an aldose, ketose, triose, tetrose, pentose, or hexose (each can be classified into two different categories). Which of these sugars would exist predominantly in the cyclic form?
Based on the structure of sucrose below, is it classified as a reducing sugar? ОН 6CH OH 5 5 ОН 3 6CH OH a-Glucose 2 ОН 0. ОН HO 3 1 ОН ОН 2 CH₂OH 1 B-Fructose ОН CH₂OH ОН CH₂OH ОН OH НО a, B (1-2) linkage CH₂OH Sucrose + H2O

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2. Name the disaccharide (shown at right) formed by glycosidic linkage of D-Glucose and D-Fructose. Name this disaccharide: ● ● Do you expect this disaccharide to be a reducing sugar? Briefly explain. Н OH Н CH₂OH Н OH HOCH₂ Н 0 H HO OH H O Н OH Н CH2OH