НО `CH2 В 2. Consider the structure of the disaccharide drawn at right: OH (a) Give the names and D/L designation for the two monosaccharides linked together. H,C-Ó OHOH ÓH OH А: HO НО A B: ÓH (b) In the structure, circle the anomeric carbon of each saccharide. (c) Is each saccharide present in its a or B anomer? Specify both A and B (d) Would this disaccharide undergo mutarotation? Why or why not? (e) Would this disaccharide react with Tollens and/or Benedicts reagent? Why or why not? (f) There are two reasons this is very unlikely to be a naturally occurring disaccharide. What about its structure suggests this is true? Give both reasons.
НО `CH2 В 2. Consider the structure of the disaccharide drawn at right: OH (a) Give the names and D/L designation for the two monosaccharides linked together. H,C-Ó OHOH ÓH OH А: HO НО A B: ÓH (b) In the structure, circle the anomeric carbon of each saccharide. (c) Is each saccharide present in its a or B anomer? Specify both A and B (d) Would this disaccharide undergo mutarotation? Why or why not? (e) Would this disaccharide react with Tollens and/or Benedicts reagent? Why or why not? (f) There are two reasons this is very unlikely to be a naturally occurring disaccharide. What about its structure suggests this is true? Give both reasons.
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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Please answer all of 2)
Transcribed Image Text:2. Consider the structure of the disaccharide drawn at right:
НО
`CH2
В
ОН
(a) Give the names and D/L designation for the two
monosaccharides linked together.
H,C-Ò
ОНОН ОН
А:
НО
НО
ОН
A
В:
(b) In the structure, circle the anomeric carbon of each saccharide.
(c) Is each saccharide present in its a or ß anomer? Specify both A and B
(d) Would this disaccharide undergo mutarotation? Why or why not?
(e) Would this disaccharide react with Tollens and/or Benedicts reagent? Why or why
not?
(f) There are two reasons this is very unlikely to be a naturally occurring disaccharide.
What about its structure suggests this is true? Give both reasons.
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