Introduction to General, Organic and Biochemistry
11th Edition
ISBN: 9781285869759
Author: Frederick A. Bettelheim, William H. Brown, Mary K. Campbell, Shawn O. Farrell, Omar Torres
Publisher: Cengage Learning
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Question
Chapter 20, Problem 20.24P
Interpretation Introduction
Interpretation:
If the hydroxyl groups on carbons 1, 2, 3 and 4 of a-D-glucose are at equatorial positions or not should be explained.
Concept Introduction:
To verify if the hydroxyl groups on carbons 1, 2, 3 and 4 of a-glucose are equatorial let us first understand the axial and equatorial positions.
In the chair conformations, axial bonds are parallel to the axis of the ring while equatorial bonds are perpendicular to the axis of the ring.
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Students have asked these similar questions
1 Draw D- glucose in a Fischer Projection.
2 Draw alpha-D- glucose and in the Hayworth (ring ) structure.
3 Draw the hydrolysis of maltose- the disaccharide composed of alpha D glucose molecules.
4 What is the chemical difference between cellulose and amylose
NOTE- please dont explain too much explain to the point
Classify the structures as being either an enantiomer, diastereomer or
diastereomer/epimer of D-glucose.
Structure A:
CH
H-
-OH
Structure B:
но-
H-
H-
OH
Structure C:
H-
он
H- -H
D-Glucose:
OH
||
CH
CH
CH
он
H-
он
но
-H
H-
он
но
он
но
но-
H-
но
H-
OH
OH
но
--
H- -H
H -Ç-H
Structure A:
OH
Structure B:
OH
Structure C:
OH
Cellulose is not digestible by humans because it contains glucose units linked by -glycosidic
bonds.
O a-1,6
O a-1,4
O a-1,2
O B-1,4
O B-1,2
Chapter 20 Solutions
Introduction to General, Organic and Biochemistry
Ch. 20.1 - Prob. 20.1PCh. 20.2 - Prob. 20.2PCh. 20.2 - Prob. 20.3PCh. 20.3 - Prob. 20.4PCh. 20.4 - Prob. 20.5PCh. 20 - Prob. 20.6PCh. 20 - Prob. 20.7PCh. 20 - Prob. 20.8PCh. 20 - Prob. 20.9PCh. 20 - Prob. 20.10P
Ch. 20 - Prob. 20.11PCh. 20 - Prob. 20.12PCh. 20 - Prob. 20.13PCh. 20 - Prob. 20.14PCh. 20 - Prob. 20.15PCh. 20 - Prob. 20.16PCh. 20 - Prob. 20.17PCh. 20 - Prob. 20.18PCh. 20 - .19 What is an amino sugar? Name the three amino...Ch. 20 - Prob. 20.20PCh. 20 - Prob. 20.21PCh. 20 - Prob. 20.22PCh. 20 - Prob. 20.23PCh. 20 - Prob. 20.24PCh. 20 - Prob. 20.25PCh. 20 - Prob. 20.26PCh. 20 - Prob. 20.27PCh. 20 - Prob. 20.28PCh. 20 - Prob. 20.29PCh. 20 - Prob. 20.30PCh. 20 - Prob. 20.31PCh. 20 - Prob. 20.32PCh. 20 - Prob. 20.33PCh. 20 - Prob. 20.34PCh. 20 - Prob. 20.35PCh. 20 - Prob. 20.36PCh. 20 - Prob. 20.37PCh. 20 - Prob. 20.38PCh. 20 - Prob. 20.39PCh. 20 - Prob. 20.40PCh. 20 - Prob. 20.41PCh. 20 - Prob. 20.42PCh. 20 - Prob. 20.43PCh. 20 - Prob. 20.44PCh. 20 - Prob. 20.45PCh. 20 - 6 Where is glycogen stored in the human body?Ch. 20 - Prob. 20.47PCh. 20 - 8 How is it possible that cows can digest grass...Ch. 20 - Prob. 20.49PCh. 20 - Prob. 20.50PCh. 20 - 1 Hyaluronic acid acts as a lubricant in the...Ch. 20 - 2 The anticlotting property of heparin is partly...Ch. 20 - Prob. 20.53PCh. 20 - Prob. 20.54PCh. 20 - Prob. 20.55PCh. 20 - Prob. 20.56PCh. 20 - Prob. 20.57PCh. 20 - Prob. 20.58PCh. 20 - Prob. 20.59PCh. 20 - Prob. 20.60PCh. 20 - Prob. 20.61PCh. 20 - 2 In making candy or sugar syrups, sucrose is...Ch. 20 - Prob. 20.63PCh. 20 - Prob. 20.64PCh. 20 - Prob. 20.65PCh. 20 - Prob. 20.66PCh. 20 - Prob. 20.67PCh. 20 - Prob. 20.68PCh. 20 - Prob. 20.69PCh. 20 - 0 What are the structural differences between...Ch. 20 - Prob. 20.71PCh. 20 - Prob. 20.72PCh. 20 - Prob. 20.73PCh. 20 - Prob. 20.74PCh. 20 - Prob. 20.75PCh. 20 - Prob. 20.76PCh. 20 - Prob. 20.77PCh. 20 - Prob. 20.78PCh. 20 - Prob. 20.79PCh. 20 - Prob. 20.80PCh. 20 - Prob. 20.81PCh. 20 - Prob. 20.82PCh. 20 - Prob. 20.83PCh. 20 - Prob. 20.84PCh. 20 - Prob. 20.85PCh. 20 - Prob. 20.86PCh. 20 - Prob. 20.87PCh. 20 - Prob. 20.88PCh. 20 - Prob. 20.89P
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- What glycosides are formed when each monosaccharide is treated with CH3CH2OH, HCl: (a) β-D-mannose; (b) α-D-gulose; (c) β-D-fructose?arrow_forwarda) Which of the following monosaccharides will react with Tollens' reagent? Circle all that apply. СООН CH2OH CH2OH OCH3 но- H- O: OH но H- но—н OH ČH2OH ČH2OH ÓH II III IV V b) Which of the following carbohydrates is sucrose? OH OH OH но OH HO, O. OH "OH HO OH Он HO OH II I HO, HO. Он HO, HO. HO, OH Но Он но. OH HO,, HO, OH HOl HO OH но он III Он HO IV HO ноarrow_forwardConsider Newman projections (A–D) for four-carbon carbohydrates. Howis each pair of compounds related: (a) A and B; (b) A and C; (c) A and D; (d) C and D? Choose from identical molecules, enantiomers, or diastereomers.arrow_forward
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