Biology: The Unity and Diversity of Life (MindTap Course List)
15th Edition
ISBN: 9781337408332
Author: Cecie Starr, Ralph Taggart, Christine Evers, Lisa Starr
Publisher: Cengage Learning
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Chapter 3, Problem 7SQ
Summary Introduction
To examine: Whether the statement “Unlike saturated fats, all unsaturated fats are beneficial to health because their fatty acid tails kink and do not pack together” is true or false.
Concept introduction: Fat is made of two compounds: glycerol and fatty acids. Fats are of two types: saturated fats and unsaturated fats. Unsaturated fats have fatty acids that have at least one double bond between the carbon atoms in their aliphatic chain, thus making them highly reactive.
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Is this statement true or false? Unlike saturated fats, allunsaturated fats are beneficial to health because theirfatty acid tails kink and do not pack together.
When natural monounsaturated fats generally undergo the chemical
process of partial hydrogenation, their fatty acid chains are converted into
the following two forms: trans and saturated.
O True
False
Most animal fats are solid at room temperature, whereas plant and fish oils tend to be liquid. Both contain fatty acids. Can you predict which type of fat contains saturated fatty acids, and which type contains unsaturated fatty acids?
Chapter 3 Solutions
Biology: The Unity and Diversity of Life (MindTap Course List)
Ch. 3 - Effects of Dietary Fats on Lipoprotein Levels...Ch. 3 - Effects of Dietary Fats on Lipoprotein Levels...Ch. 3 - Effects of Dietary Fats on Lipoprotein Levels...Ch. 3 - Effects of Dietary Fats on Lipoprotein Levels...Ch. 3 - Organic molecules consist mainly of ______ atoms....Ch. 3 - Prob. 2SQCh. 3 - _______ groups are the acid part of amino acids...Ch. 3 - _________ is a simple sugar (a monosaccharide). a....Ch. 3 - Name three carbohydrates that can be built using...Ch. 3 - Unlike saturated fats, the fatty acid tails of...
Ch. 3 - Prob. 7SQCh. 3 - Steroids are among the lipids with no _________....Ch. 3 - Which of the following is a class of molecules...Ch. 3 - ________ are to proteins as _______ are to nucleic...Ch. 3 - A denatured protein has lost its _______ . a....Ch. 3 - A ________ is an example of protein secondary...Ch. 3 - In the following list, identify the carbohydrate,...Ch. 3 - Match the molecules with the best description....Ch. 3 - Match each polymer with its component monomers....Ch. 3 - Prob. 1CTCh. 3 - Lipoprotein particles are relatively large,...Ch. 3 - In 1976, a team of chemists in the United Kingdom...
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- Unlike saturated fatty acids, the tails of unsaturated fatty acids incorporate one or more _______. a. phosphate groups b. glycerols c. double bonds d. single bondsarrow_forwardUnlike saturated fats, the fatty acid tails of unsaturated fats incorporate one or more ________. a. phosphate group c. double bonds b. glycerols d. single bondsarrow_forwardSaturated fatty acids are so named because they are saturated with (a) hydrogen (b) water (c) hydroxyl groups (d) glycerol (e) double bondsarrow_forward
- Certain fats are important components of a healthy diet. But trans-fats are associated with increased risk of heart disease. Are trans-fats saturated or unsaturated fatty acids? What is the difference in chemical structure between a trans-fat versus a cis-fat?arrow_forwardLipids are composed of one or more long chains of amino acids. True or false?arrow_forwardCysteine is the amino acid that participates in disulfide bonds in proteins. True or false?arrow_forward
- Describe how the chemical bonds in unsaturated fatty acids make them healthier for blood vessels than saturated fatty acids.arrow_forwardDescribe the differences between saturated fatty acids and unsaturated fatty acids in terms of their chemical structures. What is a polyunsaturated fatty acidarrow_forwardMonounsaturated fatty acids have a single double bond. Polyunsaturated fatty acids have multiple double bonds. Which of the following statements is true? O A. Monounsaturated fatty acids store more energy than polyunsaturated fatty acids. B. Polyunsaturated fatty acids store more energy than monounsaturated fatty acids. C. Polyunsaturated fats have a lower melting point than monounsaturated fatty acids. D. Monounsaturated fats have a lower melting point than polyunsaturated fatty acids. ered MacBook Air 딤O F3 000 F1 O00 F4 F5 F6 F7 F2 $ %arrow_forward
- From a chemical perspective, why is the energy content of fats so much greater than that of carbohydrates or proteins.arrow_forwardWhy is hydrogenation so appealing that companies will continue to include hydrogenated oils in their products despite the social stigma that trans fats have acquired? If hydrogenation is supposed to produce saturated fats, then why do its byproducts include these undesirable trans unsaturated fats? Eliminating fat from the diet to decrease health risks, yet many nutrition arguments are being made about the importance and value of fats in a balanced diet. Discuss these points and how you feel fats can be incorporated into a healthy diet, if at all.arrow_forwardIf a lipid has a fatty acid chain with a double bond in it, it is said to be...arrow_forward
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