1. Draw the condensed structural formulas for A and B. [0] [0] CH3 A B CH,-C I-CH,-C-OH
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![1.
Draw the condensed structural formulas for A and B.
[0]
[0]
CH,
CH, CH-CH, C-OH
А
B
2.
Identify the type of glycosidic bond that links the monosaccharides and the structure of the disaccharide
as a- or 8-isomer.
CH-OH
H.
H
OH
H.
CH,
HO
OH
H.
H.
ОН Н
OH
HO
H.
OH
A,](/v2/_next/image?url=https%3A%2F%2Fcontent.bartleby.com%2Fqna-images%2Fquestion%2Fd28383ce-6823-4767-ac73-0fb3cd1cb2be%2F6bae27f9-749e-4467-b495-11e5ceac2e45%2F4i5vrnb_processed.jpeg&w=3840&q=75)
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- 1. a. Explain why the melting point of palmitic acid (16 carbons, no double bonds) is slightly lower thanthat of stearic acid (18 carbons, no double bonds). Explain why the melting point of oleic acid (18carbons, one double bond) is lower than that of stearic acid b. A mixture of lipids containing phosphatidic acid, cholesterol, testosterone, phosphatidylserine, andphosphatidylethanolamine was applied to a hydrophobic interaction chromatography column. Thecolumn was washed with a high salt buffer, and the lipids were then eluted with decreasing saltconcentrations. In what order would the lipids be eluted from the column? Explain your answer.1. Label the "C" monosaccharide 2. Draw the open chain Fischer projection formula of the monosaccharide labeled “B”? Describe it as having ether the d- or l- orientationWhich of the following statements about monosaccharides is true? A. Monosaccharides are classified according to the location of their carbonyl group. B. The penultimate chiral center of a monosaccharide determines its handedness. C. If the carbonyl group of a monosaccharide is terminal then it will react positively with Barfoed's and Seliwanoff's tests. D. The cyclization of monosaccharides results to the formation of a cyclic ether. E. The existence of anomers is due to the mutarotation along the reference carbon
- Listed below are descriptions that may belong to amylose, amylopectin, both, or it may not belong to either. Write A if it describes amylose, B if it describes amylopectin, AB if the statement applies to both, or O if it doesn’t apply to either. 1. Its monosaccharides are bound by at least one α-1,4-glycosidic bond. 2. It contains α-1,6-glycosidic bonds. 3. It can be broken down by the enzyme α-amylase. 4. A polysaccharide made up of gulose. 5. It can form a double helix.Consider each of the following disaccharides: a) Label the acetal and hemiacetal in each disaccharide. b) Number the carbons in each of their monosaccharide rings. c) Classify the glycosidic linkage as α or β and use numbers to designate its location. d) Draw the Fishcher projections of the monosaccharides formed when each of thedisaccharides is hydrolyzed? e) Draw the chair conformation of each monosaccharide, where applicable.1. What is the identity of the monosaccharide components of the tetrasaccharide: A. B. C. D. 2. Give the Haworth structure of the tetrasaccharide
- 1. List the names of the 9 hydrophobic "R" groups. a) What are the two most common atoms across these 9 "R" groups? b) Look at the hydrophilic side chains. Besides carbon & hydrogen, what are the two the most common atoms in this group? 2. On the chart, locate the two acidic side chains. They both have a carboxylic acid functional group. What charge do these side chains have? a) On the chart, locate the two basic side chains. They both have an amino functional group. What charge do these side chains have? b) Locate cysteine on the chemical properties circle. What atom is found in this side chain that is not found in most of the others (except methionine)?1. Classify each pair of structures as enantiomer, diastereomers or neither enantiomers or diastereomers. 2. Draw the structures.12. The sugars glucose, fructose, and inositol all have the same formula i.e. C6H12O6 yet they have 3 very similar but different structures. This is an example of: a) geometric isomers b) structural isomers c) stereo isomers d) none are correct
- Which of the following are saponifiable lipids? (Recall that ester bonds are broken by base hydrolysis.)(a) Progesterone (b) Glyceryl trioleate(c) A sphingomyelin (d) Prostaglandin E1(e) A cerebroside (f) A lecithinGiven the following disaccharide: Sugar frament A has what structure (ketal, acetal, hemiacetal, hemiketal)? The two monosaccharides are linked by what bond (α-1,3-glycosidic bond, β-1,3-fructosidic bond, β-1,3-glycosidic bond, α-1,3-fructosidic bond)1. Construct the two enantiomeric forms/structure of the following monosaccharides and designate the handedness of each using D, L system 1. Ribulose