Consider the following figure when answering this question. Answer all of the questions on your own paper and upload this file to this quiz. Please only Word documents or pdf's. Those are best. If you upload a picture make sure it is cropped and of a quality and large enough for me to read. If I cannot read it, I cannot grade it and therefore no credit for the question. Please label with letters you are answering. CHO

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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Solve a to g

Consider the following figure when answering this question. Answer all of the
questions on your own paper and upload this file to this quiz. Please only Word
documents or pdf's. Those are best. If you upload a picture make sure it is
cropped and of a quality and large enough for me to read. If I cannot read it, I
cannot grade it and therefore no credit for the question.
Please label with letters you are answering.
CHO
HCOH
HCOH
1
CH₂OH
a) Is this an aldose or a ketose monosaccharide derivative (0.5)?
b) Is this a D or L sugar (0.5)?
HOCH
Transcribed Image Text:Consider the following figure when answering this question. Answer all of the questions on your own paper and upload this file to this quiz. Please only Word documents or pdf's. Those are best. If you upload a picture make sure it is cropped and of a quality and large enough for me to read. If I cannot read it, I cannot grade it and therefore no credit for the question. Please label with letters you are answering. CHO HCOH HCOH 1 CH₂OH a) Is this an aldose or a ketose monosaccharide derivative (0.5)? b) Is this a D or L sugar (0.5)? HOCH
c) Carefully drawn an epimer of this structure. Use the straight chain structure as
shown in the supplied figure (0.5).
d) Remember aldoses and ketoses and derivatives of aldoses and ketoses will
undergo mutarotation when dissolved in water. For the original structure shown
above, carefully draw the two predominant/major/most abundant anomeric forms
of this monosaccharide when dissolve in water (1.5).
e) Number the carbons on the alpha anomer you have drawn for part d (0.5).
f) identify whether the alpha anomer you have drawn contains a hemiacetal or a
hemiketal (0.5). Then circle that structure (either the hemiacetal or hemiketal) on
the structure you have drawn (0.5).
g) would this monosaccharide give a positive result with Benedict's reagent?
Answer yes or no then include an explanation of your reasoning as to why this
structure reacts or does not react with this reagent (0.5).
Transcribed Image Text:c) Carefully drawn an epimer of this structure. Use the straight chain structure as shown in the supplied figure (0.5). d) Remember aldoses and ketoses and derivatives of aldoses and ketoses will undergo mutarotation when dissolved in water. For the original structure shown above, carefully draw the two predominant/major/most abundant anomeric forms of this monosaccharide when dissolve in water (1.5). e) Number the carbons on the alpha anomer you have drawn for part d (0.5). f) identify whether the alpha anomer you have drawn contains a hemiacetal or a hemiketal (0.5). Then circle that structure (either the hemiacetal or hemiketal) on the structure you have drawn (0.5). g) would this monosaccharide give a positive result with Benedict's reagent? Answer yes or no then include an explanation of your reasoning as to why this structure reacts or does not react with this reagent (0.5).
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