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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 .H I Н- Н- HO-H Но -ОН -ОН -Н CH₂OH =1

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 .H I Н- Н- HO-H Но -ОН -ОН -Н CH₂OH =1

Biochemistry
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
Transcribed Image Text: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
2. Below are hexoses. Are the below sugars aldoses or ketoses? Are they in the D or L form? All the sugars below are diastereomers of one another. Which sugars are epimers of D-allose (sugar # 1)? Н. .0 Н О .0 Н Н Н Н Н НО H OH -OH OH OH CH₂OH -OH -OH -Н -OH CH OH НО Н НО Н НО- - OH -OH -OH CH2OH н -OH н -OH CH OH H НО- Н но- но- OH Н -OH -OH CH2OH OH H -Н -OH CH2OH НО НО Н Н Н. 0 НО НО НО- H- -H -OH OH CH₂OH Н Н -Н Н OH CH2OH
Transcribed Image Text:2. Below are hexoses. Are the below sugars aldoses or ketoses? Are they in the D or L form? All the sugars below are diastereomers of one another. Which sugars are epimers of D-allose (sugar # 1)? Н. .0 Н О .0 Н Н Н Н Н НО H OH -OH OH OH CH₂OH -OH -OH -Н -OH CH OH НО Н НО Н НО- - OH -OH -OH CH2OH н -OH н -OH CH OH H НО- Н но- но- OH Н -OH -OH CH2OH OH H -Н -OH CH2OH НО НО Н Н Н. 0 НО НО НО- H- -H -OH OH CH₂OH Н Н -Н Н OH CH2OH
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