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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Question
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.
Compared to olive oil, beef fat is has a higher proportion of
A. long-chain unsaturated fatty acids.
B. long-chain saturated fatty acids.
C. short-chain unsaturated fatty acids.
D. short-chain saturated fatty acids.
Which of the statements are true?
a. Triacylglycerols (triglycerides) contain ester bonds.
b. Unsaturated fats have higher melting points than saturated fats.
c. Unsaturated fats are more likely than saturated fats to be liquid at room temperature.
d. Triacylglycerols (triglycerides) always contain three identical fatty acids.
e. Fats that contain more saturated fatty acid residues than unsaturated fatty acid residues are more likely to be solid at room temperature.
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 fats, the fatty acid tails of unsaturated fats incorporate one or more ________. a. phosphate group c. double bonds b. glycerols d. single bondsarrow_forwardUnlike saturated fatty acids, the tails of unsaturated fatty acids incorporate one or more _______. a. phosphate groups b. glycerols c. double bonds 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
- Dixie Bee wanted to make JELL-O shots for her next party, but felt guilty about encouraging her guests to consume alcohol. She tried to compensate for the toxicity of the alcohol by adding pieces of healthy fresh pineapple to the shots, but when she did, the JELL-O never solidified. What happened? Hint: JELL-O is mainly sugar and a gelatinous mixture of proteins.arrow_forwardMost 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?arrow_forwardIf a fat contains mostly unsaturated fatty acids, it is likely to be __________ at room temperature.arrow_forward
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