Textbook Question
Identify the type of transport described by each of the following:
a. An ion moves from low to high concentration in the cell.
Ch.15 Lipids
Timberlake13th EditionChemistry: An Introduction to General, Organic, and Biological ChemistryISBN: 9780134421353
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Table of contents
- Ch.1 Chemistry in Our Lives11
- Ch.2 Chemistry and Measurements80
- Ch.3 Matter and Energy54
- Ch.4 Atoms and Elements51
- Ch.5 Nuclear Chemistry42
- Ch.6 Ionic and Molecular Compounds57
- Ch.7 Chemical Quantities and Reactions41
- Ch.8 Gases29
- Ch.9 Solutions51
- Ch.10 Acids and Bases and Equilibrium65
- Ch.11 Introduction to Organic Chemistry: Hydrocarbons78
- Ch.12 Alcohols, Thiols, Ethers, Aldehydes, and Ketones83
- Ch.13 Carbohydrates54
- Ch.14 Carboxylic Acids, Esters, Amines, and Amides90
- Ch.15 Lipids61
- Ch.16 Amino Acids, Proteins, and Enzymes84
- Ch.17 Nucleic Acids and Protein Synthesis83
- Ch.18 Metabolic Pathways and ATP Production67
Timberlake13th EditionChemistry: An Introduction to General, Organic, and Biological ChemistryISBN: 9780134421353Not the one you use?Change textbook
Chapter 15, Problem 74a
Identify each of the following as a saturated, monounsaturated, polyunsaturated, omega-3, or omega-6 fatty acid:
a. 
Verified step by step guidance1
Step 1: Understand the definitions of the terms provided in the problem. A saturated fatty acid contains no double bonds between carbon atoms in its hydrocarbon chain. A monounsaturated fatty acid contains one double bond, while a polyunsaturated fatty acid contains two or more double bonds. Omega-3 and omega-6 fatty acids are types of polyunsaturated fatty acids, where the first double bond is located at the third or sixth carbon from the omega (methyl) end of the chain, respectively.
Step 2: Examine the structure of the fatty acid in the provided image. Look for the presence and number of double bonds in the hydrocarbon chain. If there are no double bonds, it is saturated. If there is one double bond, it is monounsaturated. If there are two or more double bonds, it is polyunsaturated.
Step 3: If the fatty acid is polyunsaturated, determine the position of the first double bond relative to the omega (methyl) end of the chain. Count the carbon atoms starting from the omega end until you reach the first double bond. If the first double bond is at the third carbon, it is an omega-3 fatty acid. If it is at the sixth carbon, it is an omega-6 fatty acid.
Step 4: Repeat the analysis for each fatty acid structure provided in the images. Carefully count the number of double bonds and their positions to classify each fatty acid correctly.
Step 5: Summarize your findings for each fatty acid, specifying whether it is saturated, monounsaturated, polyunsaturated, omega-3, or omega-6 based on the structural analysis.
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Key Concepts
Here are the essential concepts you must grasp in order to answer the question correctly.
Types of Fatty Acids
Fatty acids are categorized based on their chemical structure. Saturated fatty acids have no double bonds between carbon atoms, while unsaturated fatty acids contain one or more double bonds. Monounsaturated fatty acids have one double bond, and polyunsaturated fatty acids have multiple double bonds. Omega-3 and omega-6 fatty acids are specific types of polyunsaturated fats that are essential for human health.
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Saturated Fatty Acids
Saturated fatty acids are typically solid at room temperature and are found in animal fats and some plant oils. They are characterized by their lack of double bonds, which allows them to pack closely together. High intake of saturated fats is often linked to increased cholesterol levels and heart disease, making it important to monitor their consumption.
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Unsaturated Fatty Acids
Unsaturated fatty acids are generally liquid at room temperature and are found in plant oils, nuts, and fish. They are divided into monounsaturated and polyunsaturated fats. Monounsaturated fats, like those found in olive oil, can help reduce bad cholesterol levels, while polyunsaturated fats, including omega-3 and omega-6 fatty acids, are crucial for brain function and cell growth.
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Related Practice
Textbook Question
Palm oil has a high level of glyceryl tripalmitate (tripalmitin). Draw the condensed structural formula for glyceryl tripalmitate.
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Textbook Question
Identify each of the following as a saturated, monounsaturated, polyunsaturated, omega-3, or omega-6 fatty acid:
a.
Textbook Question
The total kilocalories and grams of fat for some typical meals at fast-food restaurants are listed here. Calculate the number of kilocalories and the percentage of total kilocalories from fat (1 gram of fat = 9 kcal). Round answers to the tens place.
a. a beef burrito, 470 kcal, 21 g of fat
Textbook Question
Identify each of the following as a fatty acid, soap, triacylglycerol, wax, glycerophospholipid, sphingolipid, or steroid:
a. beeswax
1
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