BIOCHEMISTRY (LOOSELEAF)-W/ACCESS
9th Edition
ISBN: 9781319425784
Author: BERG
Publisher: Macmillan Higher Education
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Question
Chapter 11, Problem 13P
Interpretation Introduction
Interpretation:
The carbon-carbon cleavage reaction can differentiate between the two derivatives of pyranose and furanoseshould be determined.
Concept introduction:
Carbohydrates are a large group of organic compounds that are present in foods, living tissues. These include sugars, cellulose, and starch. These are comprised of hydrogen and oxygen in a similar ratio as in water (2:1). They are usually broken down to release the energy in the animal body. These are of three types: monosaccharides, disaccharides, and polysaccharides.
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Cyclic forms of D-glucose: Haworth formula
The furanose and pyranose forms of D-glucose can be presented using Haworth formula. The following
templates are used for this formula. Note the numbering of the carbon atoms and the anomeric carbon
(this carbon defines the alpha and beta isomer).
Furanose template (furan)
Pyranose template (pyran)
anomeric carbon
anomeric carbon
Compare the Fisher and Haworth formula of D-glucofuranose and D-glucopyranose. Notice that the
groups attached to C-1, C-2, and C-3 on the left side of the Fisher formula are written above the plane
of the furanose template.
Fisher formula
Haworth formula
H FOH
H-2
HOH,č 5
-OH
FOH-
H
HO-3H
4
он
H
1
H-4
H-5
H
OH
3
6 CH2OH
H
OH
Alpha-D-glucofuranose
Alpha-D-glucofuranose
HOH2C-
он
OH
но
H
FOH-
OH
Но
H
H.
OH
H
ČH2OH
Beta-D-glucofuranose
Beta-D-glucofuranose
7.
Elodea cells. How can the observed differences be explained on the basis of the ether:water partition
9. Compare the penetration rates of the 3-carbon alcohols, n-propanol, propylene glycol, and glycerol, into
coefficients? On the basis of molecular structure?
Chapter 11 Solutions
BIOCHEMISTRY (LOOSELEAF)-W/ACCESS
Ch. 11 - Prob. 1PCh. 11 - Prob. 2PCh. 11 - Prob. 3PCh. 11 - Prob. 4PCh. 11 - Prob. 5PCh. 11 - Prob. 6PCh. 11 - Prob. 7PCh. 11 - Prob. 8PCh. 11 - Prob. 9PCh. 11 - Prob. 10P
Ch. 11 - Prob. 11PCh. 11 - Prob. 12PCh. 11 - Prob. 13PCh. 11 - Prob. 14PCh. 11 - Prob. 15PCh. 11 - Prob. 16PCh. 11 - Prob. 17PCh. 11 - Prob. 18PCh. 11 - Prob. 19PCh. 11 - Prob. 20PCh. 11 - Prob. 21PCh. 11 - Prob. 22PCh. 11 - Prob. 23PCh. 11 - Prob. 24PCh. 11 - Prob. 25PCh. 11 - Prob. 26PCh. 11 - Prob. 27PCh. 11 - Prob. 28PCh. 11 - Prob. 29PCh. 11 - Prob. 30PCh. 11 - Prob. 31PCh. 11 - Prob. 32PCh. 11 - Prob. 33PCh. 11 - Prob. 34PCh. 11 - Prob. 35PCh. 11 - Prob. 36PCh. 11 - Prob. 37PCh. 11 - Prob. 38PCh. 11 - Prob. 39P
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