Principles of General, Organic, Biological Chemistry
2nd Edition
ISBN: 9780073511191
Author: Janice Gorzynski Smith Dr.
Publisher: McGraw-Hill Education
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Question
Chapter 14.2, Problem 14.9P
(a)
Interpretation Introduction
Interpretation:
Fischer projection for D-galactose has to be drawn.
Concept Introduction:
Fischer projection formula simply uses cross for representing tetrahedral carbon atom. The carbon atom that is present in the intersection point in cross. The horizontal bonds means they are coming forward and they are present on wedge bond. The vertical bonds means they are pointing away and they are present on dashed lines.
(b)
Interpretation Introduction
Interpretation:
Fischer projection for the enantiomer of D-galactose has to be drawn.
Concept Introduction:
Enantiomers are two stereoisomers of a compound that rotate the plane polarized light exactly opposite. The configuration present in the enantiomers will be exactly opposite to each other.
Fischer projection formula simply uses cross for representing tetrahedral carbon atom. The carbon atom that is present in the intersection point in cross. The horizontal bonds means they are coming forward and they are present on wedge bond. The vertical bonds means they are pointing away and they are present on dashed lines.
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Indicate whether each statement is true or false: (a)Disaccharides are a type of carbohydrate. (b) Sucrose is amonosaccharide. (c) All carbohydrates have the formulaCnH2mOm.
A triglyceride can be optically active if it contains two or more different fatty acids.(a) Draw the structure of an optically active triglyceride containing one equivalent of myristic acid and two equivalentsof oleic acid.(b) Draw the structure of an optically inactive triglyceride with the same fatty acid composition.
Indicate whether each statement is true or false: (a) Disaccharides are a type of carbohydrate. (b) Sucrose is a monosaccharide. (c) All carbohydrates have the formula CnH2mOm.
Chapter 14 Solutions
Principles of General, Organic, Biological Chemistry
Ch. 14.1 - Draw a Lewis structure for glucose that clearly...Ch. 14.2 - Prob. 14.2PCh. 14.2 - Prob. 14.3PCh. 14.2 - Prob. 14.4PCh. 14.2 - Rank the following compounds in order of...Ch. 14.2 - Prob. 14.6PCh. 14.2 - Prob. 14.7PCh. 14.2 - Prob. 14.8PCh. 14.2 - Prob. 14.9PCh. 14.3 - Prob. 14.10P
Ch. 14.3 - Prob. 14.11PCh. 14.4 - Prob. 14.12PCh. 14.4 - Prob. 14.13PCh. 14.4 - Prob. 14.14PCh. 14.4 - Prob. 14.15PCh. 14.5 - Prob. 14.16PCh. 14.5 - Prob. 14.17PCh. 14.5 - Prob. 14.18PCh. 14.5 - Prob. 14.19PCh. 14.6 - Prob. 14.20PCh. 14 - Prob. 14.21UKCCh. 14 - Prob. 14.22UKCCh. 14 - Prob. 14.23UKCCh. 14 - Prob. 14.24UKCCh. 14 - Prob. 14.25UKCCh. 14 - Prob. 14.26UKCCh. 14 - Prob. 14.27UKCCh. 14 - Prob. 14.28UKCCh. 14 - Prob. 14.29UKCCh. 14 - Prob. 14.30UKCCh. 14 - Prob. 14.31APCh. 14 - Prob. 14.32APCh. 14 - Prob. 14.33APCh. 14 - Prob. 14.34APCh. 14 - Prob. 14.35APCh. 14 - Prob. 14.36APCh. 14 - Prob. 14.37APCh. 14 - Prob. 14.38APCh. 14 - Prob. 14.39APCh. 14 - Prob. 14.40APCh. 14 - Prob. 14.41APCh. 14 - Prob. 14.42APCh. 14 - Prob. 14.43APCh. 14 - Prob. 14.44APCh. 14 - Prob. 14.45APCh. 14 - Prob. 14.46APCh. 14 - Prob. 14.47APCh. 14 - Prob. 14.48APCh. 14 - Prob. 14.49APCh. 14 - Prob. 14.50APCh. 14 - Prob. 14.51APCh. 14 - Prob. 14.52APCh. 14 - Prob. 14.53APCh. 14 - Prob. 14.54APCh. 14 - Prob. 14.55APCh. 14 - Prob. 14.56APCh. 14 - Prob. 14.57APCh. 14 - Prob. 14.58APCh. 14 - Prob. 14.59APCh. 14 - Prob. 14.60APCh. 14 - Prob. 14.61APCh. 14 - Prob. 14.62APCh. 14 - Prob. 14.63APCh. 14 - Prob. 14.64APCh. 14 - Prob. 14.65APCh. 14 - Prob. 14.66APCh. 14 - Prob. 14.67APCh. 14 - Prob. 14.68APCh. 14 - Prob. 14.69APCh. 14 - Prob. 14.70APCh. 14 - Prob. 14.71APCh. 14 - Prob. 14.72APCh. 14 - Prob. 14.73CPCh. 14 - Prob. 14.74CP
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- Draw the structure of b-D-galactose molecule using (a) Fischer projectionarrow_forward(a) Draw the more stable chair form of fucose, an essential monosaccharide needed in the diet and a component of carbohydrates on mammalian and plant cell surfaces. (b) Classify fucose as a D- or Lmonosaccharide. (c) What two structural features are unusual in fucose?arrow_forward(a) Draw the condensed structural formula, and give the name for the dipeptide Pro-Asn. (b) Draw the disaccharide formed by the following two monosaccharide via 1,4-linkage. In your disaccharide structure, circle and label the anomeric carbon and indicate whether you have an alpha (a) or a beta (B) anomer. CH2OH CH₂OH ОН ОН ОН ОН, ОН ОН ОН ОНarrow_forward
- Draw the structure of: (a) a polysaccharide formed by joining D-mannose units in 1→4-β- glycosidic linkages; (b) a polysaccharide formed by joining D-glucose units in 1→6-α- glycosidic linkages. The polysaccharide in (b) is dextran, a component of dental plaque.arrow_forwardMonosaccharides can be categorized in terms of thenumber of carbon atoms (pentoses have five carbons andhexoses have six carbons) and according to whether theycontain an aldehyde (aldo- prefix, as in aldopentose) orketone group (keto- prefix, as in ketopentose). Classify glucoseand fructose in this way.arrow_forwardA) Define "reducing sugar." (b) Sucrose is a disaccharide composed of glucose and fructose (Glc(1 → 2)Fru). Explain why sucrose is not a reducing sugar, even though both glucose and fructose are.arrow_forward
- This substance, produced by certain soil bacteria as a defensive weapon, is used as an antibiotic. It is derived from monosaccharides. CH3 H NH₂ H₂N CH3 OH HO NH₂ CH3 NH -CH3 OH (a) How many "monosaccharide" residues are present? (b) List one way that these residues differ chemically from the monosaccharides you have I seen so far. (c) Draw an arrow pointing to one glycosidic bond. (d) Can you tell whether the bonds linking the residues have the alpha or beta configuration?arrow_forwardConsider N-acetyl-d-glucosamine Q.) Draw a chair conformation for the disaccharide formed by joining two units of the pyranose form of N-acetyl-d-glucosamine by a b-1,4-glycosidic bond. If you draw this correctly, you have the structural formula for the repeating dimer of chitin, the structural polysaccharide component of the shell of lobsters and other crustaceans.arrow_forwardIn glycoside formation, the hemiacetal functional group of a cyclic monosaccharide is converted to an acetal group by reaction with a(an)arrow_forward
- A triglyceride can be optically active if it contains two or more different fatty acids.(a) Draw the structure of an optically active triglyceride containing one equivalent of myristic acid and two equivalentsof oleic acidarrow_forwardCrocin, which occurs naturally in crocus and gardenia flowers, is primarily responsible for the color of saffron. (a) What lipid and monosaccharides are formed by the hydrolysis of crocin? (b) Classify the lipid as a monoterpenoid, diperpenoid, etc., and locate the isoprene units.arrow_forwardThe sweet test of honey is because the monosaccharides D-glucose and D-fructose. What are some differences in the Fischer projections of the D-glucose, D-galactose, and D-fructose?arrow_forward
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