Campbell Essential Biology with Physiology (6th Edition)
6th Edition
ISBN: 9780134711751
Author: Eric J. Simon, Jean L. Dickey, Jane B. Reece
Publisher: PEARSON
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Chapter 3, Problem 18PS
A food manufacturer is advertising a new cake mix as fat-free. Scientists at the Food and Drug Administration (FDA) are testing the product to see if it truly lacks fat. Hydrolysis of the cake mix yields glucose, fructose, glycerol, a number of amino acids, and several kinds of molecules with long chains. Further analysis shows that most of the chains have a carboxyl group at one end. What would you tell the food manufacturer if you were a spokesperson for the FDA?
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Proteins are among the most diverse macromolecules because
A-they contains both amino groups and carboxyl groups.
B-they can twist and fold into many different and complex structures.
C-they contains nitrogen as well as carbon, hydrogen, and oxygen.
D-their R groups can be either acidic or basic
Which of the following statements about cellulose is true?
A-Animals make it and use it to store energy.
B-Plants make it and use it to store energy.
C-Animals make it and use it as part of the skeleton.
D-Plants make it and use it to give structural support to cells.
A major difference between polysaccharides and proteins is that
a-plants make polysaccharides, while animals make proteins.
B-proteins are made of monomers, while polysaccharides are not.
C-polysaccharides are made of monosaccharides, while proteins are made of amino acids.
D-proteins carry genetic information, while polysaccharides do not.
The enzyme amylase can break glycosidic linkages betweenglucose monomers only if the monomers are in the α form.Which of the following could amylase break down?(A) glycogen, starch, and amylopectin(B) glycogen and cellulose(C) cellulose and chitin(D) starch, chitin, and cellulose
Which of the following describes a lipid?
A. An organic molecule that consists of one or more chains of amino acids folded up in a specific shape
B. A fatty, oily, or waxy organic compound often composed of fatty acids
C. A molecule that consists primarily of carbon, hydrogen, and oxygen atoms in a ratio of 1:2:1
D. A molecule that consists of one or more strands of nucleotides
Chapter 3 Solutions
Campbell Essential Biology with Physiology (6th Edition)
Ch. 3 - Prob. 1SQCh. 3 - Monomers are joined together to form larger...Ch. 3 - Prob. 3SQCh. 3 - Prob. 4SQCh. 3 - When two molecules of glucose (C6H12O6) are joined...Ch. 3 - One molecule of dietary fat is made by joining...Ch. 3 - Prob. 7SQCh. 3 - Prob. 8SQCh. 3 - Prob. 9SQCh. 3 - Most proteins can easily dissolve in water....
Ch. 3 - Prob. 11SQCh. 3 - Prob. 12SQCh. 3 - Name three similarities between DNA and RNA. Name...Ch. 3 - Prob. 14SQCh. 3 - Prob. 15IMTCh. 3 - Prob. 16IMTCh. 3 - Prob. 17IMTCh. 3 - A food manufacturer is advertising a new cake mix...Ch. 3 - Prob. 19PSCh. 3 - Prob. 20PSCh. 3 - Prob. 21BSCh. 3 - Prob. 22BSCh. 3 - Prob. 23BS
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- Which of the following is the carbohydrate, the fatty acid, the amino acid, and the polypeptide? a. +NH3CHRCOO b. C6H12O6 c. (glycine)20 d. CH3(CH2)16COOHarrow_forwardAn example of a monosaccharide is ________. a. fructose b. glucose c. galactose d. all of the abovearrow_forwardFigure 2.17 Fatty acids. Double bonds in the tails are highlighted in red. A. The tail of stearic acid is fully saturated with hydrogen atoms. B. Linoleic acid, with two double bonds, is unsaturated. The first double bond occurs at the sixth carbon from the end of the tail, so linoleic acid is called an omega-6 fatty acid. Omega-6 and C. omega-3 fatty acids are essential fatty acids, which means your body does not make them and they must come from food. D. The hydrogen atoms around the double bond in oleic acid are on the same side of the tail. Most other naturally occurring unsaturated fatty acids have these cis bonds. E. Hydrogenation creates abundant trans bonds, with hydrogen atoms on opposite sides of the tail. Figure It Out: Are the double bonds in linolenic acid cis or trans?arrow_forward
- Fatty acids are esterified into mono-, di-, or triglycerides by attaching to: Sterol Cholesterol Glycerol Sodium chloride Omega-3 fatty acids have which of the following? At least 3 double bonds A 3-carbon backbone A double bond 3 carbons from the end of the chain At least 3 fatty acid molecules linked by omega bondsarrow_forwardCarbon chains are principal features for both carbohydrates and lipids. What is the primary difference between these two types of macromolecules?* Please choose one correct answer only. A. Lipids always have longer carbon chains than carbohydrates B. Lipids provide energy, but carbohydrates cannot C. Carbohydrates cannot form rings like lipids can D. Carbohydrates form ring structures, lipids form long chainsarrow_forwardWhich of the following statements is TRUE? A) Monosaccharides are the building blocks of polypeptides.B) Nucleotides are the building blocks of saccharides.C) Carbohydrates are water soluble and responsible for short term energy storage.D) Amino acids are made of peptides.E) Fatty acids are responsible for DNA replicationarrow_forward
- Which is common to glucose, deoxyribose, ribose, galactose, and fructose? They are monosaccharides. They are disaccharides. They have 4 carbons in their molecular structure They have 5 carbons in their molecular structurearrow_forwardWhich of the following polysaccharides is the principal form of stored sugars in animals? A. Starch B. Glycogen C. Cellulose D. Chitinarrow_forwardWhich of the following is incorrect regarding nucleotides?a. They contain a sugar, a nitrogen-containing base, and aphosphate group.b. They are the monomers of fats and polysaccharides.c. They join together by alternating covalent bonds between thesugars and phosphate groups.d. They are present in both DNA and RNAarrow_forward
- Which of the following polysaccharides is a component of the extracellular matrix and connective tissue? a. glycogen b. hyaluronic acid c. chitin d. cellulosearrow_forwardWhich of the following lipids is used for energy storage? A. glycolipids B. glycerophospholipids C. sphingolipids D. triacylglycerolsarrow_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
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