What Is Life? A Guide to Biology with Physiology
4th Edition
ISBN: 9781319065447
Author: Jay Phelan
Publisher: W. H. Freeman
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Chapter 3, Problem 5MC
Summary Introduction
Introduction:
Fats are of two types – saturated and unsaturated.
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Polyunsaturated fatty acids
a). are solid at room temperature
b). have carbon-carbon double bonds
c). are polar
d). have high melting points
Which 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.
Which of the following properties of a free fatty acid molecule would make it capable of producing the most energy when used as a fuel source, compared to other free fatty acids?
a) A large number of unsaturated bonds
b) Shorter hydrocarbon chain with a large number of carbonyl groups
c) Longer hydrocarbon chain with a large number of saturated bonds
d) Shorter hydrocarbon chain with a large number of saturated bonds
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What Is Life? A Guide to Biology with Physiology
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- Which of the following statements concerning palmitic acid is INCORRECT? a. It can barely be dissolved in water. b. It is an unsaturated fatty acid. c. It is consisted of 16 carbons. d. It is a lipid.arrow_forwardFatty acids in phospholipids and triacylglycerols interact with one another by (a) disulfide bridges (b) van der Waals interactions (c) covalent bonds (d) hydrogen bonds (e) fatty acids do not interact with one anotherarrow_forwardWhich of these fatty acids has two cis double bonds in its structure? a. Linoleic acid b. Stearic acid c. Alpha-linoleic acid d. Palmitic acid e. Oleic acidarrow_forward
- Which of the following statements about steroids is false? a. They are classified as lipids because, like lipids, they are nonpolar b.They can act as regulatory molecules in animals. c.They are composed of four carbon rings. d.They are highly soluble in water. e.Their most abundant form is as sterols.arrow_forwardWhich of the following is true of the molecule pictured below? A) It will spontaneously form into biological membranes. B) It would be liquid at room temperature because it contains unsaturated fatty acids. C) It would be solid at room temperature because it contains only saturated fatty acids. D) It would be liquid at room temperature because it contains only saturated fatty acids. E) It would be solid at room temperature because it contains unsaturated fatty acids.arrow_forwardThe difference between an aldose sugar and a ketose sugar is ________. A) the number of carbon atoms B) the position of the hydroxyl groups C) the position of the carbonyl group D) the ring form and the linear chainarrow_forward
- In which of the following pairs of fatty acids does the first listed acid have a higher solubility in water than the second listed acid? A. 18:0 acid and 18:3 acid B. 14:3 acid and 20:0 acid C. 12:0 acid and 22:0 acid D. 16:2 acid and 16:0 acidarrow_forwardWhich of the following is NOT a function of proteins? A. movement of muscles B. provide structural components stores the genetic information of a living organism C. catalyze reactions in the cells D. transport substances through the bloodstreamarrow_forwardCompared 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.arrow_forward
- Which of the following statements is true regarding cellulose? Select one: A. It is a primary structural component of plant cell walls. B. It is digestible by bacteria in the human gut. C. It is a polymer of glucose joined by α glycosidic linkages. D. It is a polymer composed of enantiomers of glucose. E. It is a storage polysaccharide for energy in plant cells.arrow_forwardWhich of the following is NOT essential fatty acids? A. Omega-3 fatty acid B. Alpha-linoleic acid C. Linoleic acid D. Saturated fatty acidarrow_forwardLinolenic acid and Linoleic acid, the essential fatty acids, are respectively, * A. 16:1 and 18:1 fatty acids B. 18:2 and 18:3 fatty acids C. 18:3 and 18:2 fatty acids D. 20:5 and 22:6 fatty acidsarrow_forward
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