General, Organic, and Biological Chemistry - 4th edition
General, Organic, and Biological Chemistry - 4th edition
4th Edition
ISBN: 9781259883989
Author: by Janice Smith
Publisher: McGraw-Hill Education
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Chapter 19, Problem 31P
Interpretation Introduction

(a)

Interpretation:

The hydrophobic and hydrophilic part of the 7, 10, 13, 16, 19-docosapentaenoic acid should be labeled.

Concept Introduction:

Fatty acids are long chain carboxylic acid, which may or may not have unsaturation in the molecule. They react with glycerol to form triglycerides. The reaction is known as esterification as a carboxylic acid group reacts with the alcoholic group to form an ester group.

Unsaturated fatty acids can be defined as the long chain fatty acids which have a long hydrocarbon chain with −COOH group. In unsaturated fatty acids, the carbon chain must have at least one double bond.

Interpretation Introduction

(b)

Interpretation:

The melting point difference in the cis and trans-isomer of the 7, 10, 13, 16, 19-docosapentaenoic acid should be determined.

Concept Introduction:

Fatty acids are long chain carboxylic acid, which may or may not have unsaturation in the molecule. They react with glycerol to form triglycerides. The reaction is known as esterification as a carboxylic acid group reacts with the alcoholic group to form an ester group.

Unsaturated fatty acids can be defined as the long chain fatty acids which have a long hydrocarbon chain with −COOH group. In unsaturated fatty acids, the carbon chain must have at least one double bond.

Interpretation Introduction

(c)

Interpretation:

The physical state of 7, 10, 13, 16, 19-docosapentaenoic acid as solid or liquid at room temperature should be determined.

Concept Introduction:

Fatty acids are long chain carboxylic acid, which may or may not have unsaturation in the molecule. They react with glycerol to form triglycerides. The reaction is known as esterification as a carboxylic acid group reacts with the alcoholic group to form an ester group.

Unsaturated fatty acids can be defined as the long chain fatty acids which have a long hydrocarbon chain with −COOH group. In unsaturated fatty acids, the carbon chain must have at least one double bond.

Interpretation Introduction

(d)

Interpretation:

The omega-n designation for the 7, 10, 13, 16, 19-docosapentaenoic acid should be determined.

Concept Introduction:

Fatty acids are long chain carboxylic acid, which may or may not have unsaturation in the molecule. They react with glycerol to form triglycerides. The reaction is known as esterification as a carboxylic acid group reacts with the alcoholic group to form an ester group.

Unsaturated fatty acids can be defined as the long chain fatty acids which have a long hydrocarbon chain with −COOH group. In unsaturated fatty acids, the carbon chain must have at least one double bond.

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4. The ester you drew in Question #1 has a melting point range of 32-35 °C. The methyl ester of mono-unsaturated palmitoleic acid (IUPAC name: hexadec-9enoic acid) has a considerably lower melting point range: -0.5-+0.5 °C. a) Explain what it means for a fatty acid to the "mono-unsaturated." b) Illustrate your explanation by drawing the structure of the methyl ester of octadec-11-enoic acid. (Be sure to draw the geometric stereoisomer that is commonly found in nature.)
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What is the difference between saturated fatty acids and unsaturated fatty acids? Pick one answer.     A. Unsaturated fatty acids have an even number of carbons, saturated fatty acids have an odd number of carbons.     B. Unsaturated fatty acids have cis double bonds, saturated fatty acids have trans double bonds.     C. Unsaturated fatty acids have double bonds, saturated fatty acids do not.     D. Unsaturated fatty acids are naturally occurring compounds, saturated fatty acids do not occur in nature and must be prepared synthetically.

Chapter 19 Solutions

General, Organic, and Biological Chemistry - 4th edition

Ch. 19.4 - Prob. 19.7PCh. 19.4 - Prob. 19.8PCh. 19.5 - Prob. 19.5PPCh. 19.5 - Review Section 5.2 on balancing chemical...Ch. 19.5 - Prob. 19.10PCh. 19.6 - Prob. 19.6PPCh. 19.6 - Identify the components of each lipid and classify...Ch. 19.7 - Prob. 19.12PCh. 19.7 - Prob. 19.13PCh. 19.7 - Prob. 19.14PCh. 19.8 - (a) Label the rings of the steroid nucleus in...Ch. 19.8 - Prob. 19.16PCh. 19.8 - Prob. 19.17PCh. 19.9 - Prob. 19.18PCh. 19.9 - Prob. 19.19PCh. 19.10 - Prob. 19.20PCh. 19.11 - Prob. 19.21PCh. 19.11 - Prob. 19.22PCh. 19 - Prob. 23PCh. 19 - Prob. 24PCh. 19 - Prob. 25PCh. 19 - Prob. 26PCh. 19 - Prob. 27PCh. 19 - Prob. 28PCh. 19 - Rank the fatty acids in order of increasing...Ch. 19 - Prob. 30PCh. 19 - Prob. 31PCh. 19 - Prob. 32PCh. 19 - Prob. 33PCh. 19 - Prob. 34PCh. 19 - Draw the structure of a wax formed from palmitic...Ch. 19 - Draw the structure of a wax formed from a...Ch. 19 - What hydrolysis products are formed when each wax...Ch. 19 - What hydrolysis products are formed when each wax...Ch. 19 - Prob. 39PCh. 19 - Prob. 40PCh. 19 - Draw a triacylglycerol that fits each description:...Ch. 19 - Draw a triacylglycerol that fits each description:...Ch. 19 - Draw the structure of a triacylglycerol that...Ch. 19 - Draw the structure of a triacylglycerol that...Ch. 19 - Consider the following four types of compounds:...Ch. 19 - How do fats and oils compare with respect to each...Ch. 19 - For the food product shown in the accompanying...Ch. 19 - For the food product shown in the accompanying...Ch. 19 - Answer the following questions about the given...Ch. 19 - Answer the following questions about the given...Ch. 19 - Draw the products formed when each triacylglycerol...Ch. 19 - Draw the products formed when each triacylglycerol...Ch. 19 - Which of the following are phospholipids: (a)...Ch. 19 - Prob. 54PCh. 19 - Prob. 55PCh. 19 - Prob. 56PCh. 19 - wIn transporting molecules or ions across a cell...Ch. 19 - Prob. 58PCh. 19 - Draw the structure of the anabolic steroid...Ch. 19 - Draw the structure of the anabolic steroid...Ch. 19 - Why must cholesterol be transported through the...Ch. 19 - Describe the role of HDLs and LDL5 in cholesterol...Ch. 19 - Prob. 63PCh. 19 - Prob. 64PCh. 19 - (a) Draw the structure of an estrogen and an...Ch. 19 - (a) Draw the structure of an androgen and a...Ch. 19 - What are the similarities and differences between...Ch. 19 - Why aren’t prostaglandins classified as hormones?Ch. 19 - What two structural features characterize all...Ch. 19 - List three biological functions of prostaglandins...Ch. 19 - Explain why aspirin and celecoxib differ in how...Ch. 19 - How does zileuton treat the cause of asthma, not...Ch. 19 - Answer each question with regard to vitamins A and...Ch. 19 - Answer each question in Problem 19.73 for vitamins...Ch. 19 - Give an example of each type of lipid. a. a...Ch. 19 - Give an example of each type of lipid. a. a...Ch. 19 - Consider each of the following components: [1]...Ch. 19 - Consider each of the following components: [1]...Ch. 19 - Block diagrams representing the general structures...Ch. 19 - For each block diagram in Problem 19.79, label the...Ch. 19 - Prob. 81PCh. 19 - Prob. 82PCh. 19 - Prob. 83PCh. 19 - Prob. 84PCh. 19 - Prob. 85PCh. 19 - Prob. 86PCh. 19 - Can an individual survive on a completely fat-free...Ch. 19 - Prob. 88PCh. 19 - Prob. 89PCh. 19 - Prob. 90PCh. 19 - Prob. 91PCh. 19 - Prob. 92PCh. 19 - Prob. 93CPCh. 19 - Prob. 94CP
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