Campbell Biology in Focus
3rd Edition
ISBN: 9780134710679
Author: Lisa A. Urry, Michael L. Cain, Steven A. Wasserman, Peter V. Minorsky, Rebecca Orr
Publisher: PEARSON
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Textbook Question
Chapter 3, Problem 4TYU
Which of the following statements concerning unsaturated fats is true?
- A. They are more common in animals than in plants.
- B. They have double bonds in their fatty acid chains.
- C. They generally solidify at room temperature.
- D. They contain more hydrogen than do saturated fats having the same number of carbon atoms.
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ipids that are liquid at room temperature:a. are fats.b. contain more hydrogen atoms than lipids that are solids at room temperature.c. if polyunsaturated, contain several double bonds in their fatty acid chains.d. lack glycerol.e. are not stored in cells as triglycerides.
Chapter 3 Solutions
Campbell Biology in Focus
Ch. 3.1 - How are gasoline and fat chemically similar?Ch. 3.1 - Which molecules in Figure 3.4a re isomers? For...Ch. 3.1 - Prob. 3CCCh. 3.1 - Prob. 4CCCh. 3.2 - How many molecules of water are needed to...Ch. 3.2 - WHAT IF? Suppose you eat a serving of fish. What...Ch. 3.3 - Write the formula for a monosaccharide that has...Ch. 3.3 - A dehydration reaction joins two glucose molecules...Ch. 3.3 - WHAT IF? After a cow is given antibiotics to treat...Ch. 3.4 - Compare the structure of a fat (triglyceride) with...
Ch. 3.4 - Why are human sex hormones considered lipids?Ch. 3.4 - Prob. 3CCCh. 3.5 - Why does a denatured protein no longer function...Ch. 3.5 - What parts of a polypeptide participate in the...Ch. 3.5 - WHAT IF? Where would you expect a polypeptide...Ch. 3.6 - DRAW IT Go to Figure 3.27a and, for the top three...Ch. 3.6 - Prob. 2CCCh. 3.7 - How would sequencing the entire genome of an...Ch. 3.7 - Given the function of DNA, why would you expect...Ch. 3 - Which functional group is not present in this...Ch. 3 - MAKE CONNECTIONS Which chemical group is most...Ch. 3 - Prob. 3TYUCh. 3 - Which of the following statements concerning...Ch. 3 - Prob. 5TYUCh. 3 - The structural level of a protein least a fleeted...Ch. 3 - Enzymes that break down DNA catalyze the...Ch. 3 - Prob. 8TYUCh. 3 - The molecular formula for glucose is C6H12O6. What...Ch. 3 - Construct a table that organizes the following...Ch. 3 - Prob. 11TYUCh. 3 - Prob. 12TYUCh. 3 - FOCUS ON ORGANIZATION Proteins, which have diverse...Ch. 3 - Prob. 14TYUCh. 3 - SYNTHESIZE YOUR KNOWLEDGE Given that the function...
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- Which of the following statements about cholesterol is TRUE? A. Cholesterol has a multiple carbon-rings structure B. Cholesterol is a water-soluble nutrient C. Food that are high in cholesterol tend to be low in saturated fat D. Because cholesterol is not essential to our body, the FDA recommends keeping your cholesterol intake to an absolute minimumarrow_forwardWhich of the following statements concerning fatty acids is correct? a. Used to make phospholipids b. They all contain one or more double bonds. c. They are a constituent of sterols. d. They are strongly hydrophilic.arrow_forwardWhich of the following statements about amino acids is true? A. Twenty two amino acids are commonly found in proteins. B. Amino acids are often linked together to form branched polymers. C. All amino acids contain an NH2 and a COOH group. D. Most of the amino acids used in protein biosynthesis have charged side chains.arrow_forward
- Which of the following statements about saturated fats is true? a. Saturated fats contain one or more double bonds along the tails. b. Saturated fats contain the maximum number of hydrogens along the tails. c. Saturated fats make up the majority of most plant oils. d. Saturated fats are typically healthier for you than unsaturated fats.arrow_forwardWhich of the following is/are NOT a common characteristic of lipids? A. all lipids are insoluble in water B. all lipids contain fatty acids and glycerol C. all lipids are soluble in nonpolar solvents D. all lipids are found in biological systems E. none of thesearrow_forwardMark the following statements as true or false. If a statement is false, correct it to make a true statement. a. Carbohydrates are the main source of fuel for the human body. b. The main storage form of glucose in the human body is starch. c. Lipids contain oxygen and are therefore polar covalent molecules. d. Steroids, phospholipids, and triglycerides are all types of lipids. e. Proteins are composed of strings of fatty acids linked by glycosidic bonds. f. Amino acids have a carboxylic group on one end and an amino group on their other end.arrow_forward
- 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.arrow_forwardAll of the following are true about lipids except A. They store more energy than carbohydrates B. They form membranes in the body C. They are hydrophilic D. Contain more hydrogens and carbons in proportion to their oxygens.arrow_forwardFats do not dissolve in water because Select one: a. There are no C-H bonds to form hydrogen bonds with water b. There are no O-H bonds form hydrogen bonds with water c. There are no C-C bonds to form hydrogen bonds with water d. There are no C-H bonds for covalent bonds with water e. There are no C-C bonds to form covalent bonds with waterarrow_forward
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