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Chapter 02 The Chemistry of Life Answer Key
True / False Questions
1. Minerals are organic elements extracted from the soil by plants.
FALSE
Accessibility: Keyboard Navigation
Blooms Level: 1. Remember
Gradable: automatic
HAPS Objective: O01.01e List the important dietary minerals and describe the major uses of each mineral in the body.
HAPS Topic: Module O01 Nutrition.
Learning Outcome: 02.01c State the functions of minerals in the body.
Section: 02.01
Topic: Atoms and molecules
2. Molecules composed of two or more atoms are called compounds.
FALSE
Accessibility: Keyboard Navigation
Blooms Level: 3. Apply
Gradable: automatic
HAPS Objective: C01.03 Compare and contrast the terms atoms, molecules, elements, and compounds.
HAPS Topic: Module C01 Atoms and molecules.
Learning Outcome: 02.01b Distinguish between elements and compounds.
Section: 02.01
Topic: Atoms and molecules
3. Hydrogen, deuterium, and tritium are three isotopes of hydrogen.
TRUE
Accessibility: Keyboard Navigation
Blooms Level: 1. Remember
Gradable: automatic
HAPS Objective: C01.01c Explain how ions and isotopes are produced by changing the relative number of specific subatomic particles with
respect to the structure of an atom.
HAPS Topic: Module C01 Atoms and molecules.
Learning Outcome: 02.01d Explain the basis for radioactivity and the types and hazards of ionizing radiation.
Section: 02.01
Topic: Atoms and molecules
4. Potassium, sodium, and chlorine are trace elements.
FALSE
Accessibility: Keyboard Navigation
Blooms Level: 1. Remember
Gradable: automatic
HAPS Objective: C01.03 Compare and contrast the terms atoms, molecules, elements, and compounds.
HAPS Topic: Module C01 Atoms and molecules.
Learning Outcome: 02.01b Distinguish between elements and compounds.
Section: 02.01
Topic: Atoms and molecules
2-1
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5. Ionic bonds break apart in water more easily than covalent bonds do.
TRUE
Accessibility: Keyboard Navigation
Blooms Level: 2. Understand
Gradable: automatic
HAPS Objective: C02.01a List each type of bond in order by relative strength with respect to non-polar covalent, polar covalent, ionic, and
hydrogen bonds.
HAPS Topic: Module C02 Chemical bonding.
Learning Outcome: 02.01f Define the types of chemical bonds.
Section: 02.01
Topic: Chemical bonding
6. A solution is a mixture of two or more substances that are physically blended but not chemically
combined.
TRUE
Accessibility: Keyboard Navigation
Blooms Level: 2. Understand
Gradable: automatic
HAPS Objective: C03.02 Distinguish among the terms solution, solute, solvent, colloid suspension, and emulsion.
HAPS Topic: Module C03 Inorganic compounds and solutions.
Learning Outcome: 02.02c Show how three kinds of mixtures differ from each other.
Section: 02.02
Topic: Inorganic compounds and solutions
7. The pH of blood plasma is approximately 7.4, which is slightly acidic.
FALSE
Accessibility: Keyboard Navigation
Blooms Level: 1. Remember
Gradable: automatic
HAPS Objective: C03.05 State acidic, neutral, and alkaline pH values.
HAPS Topic: Module C03 Inorganic compounds and solutions.
Learning Outcome: 02.02d Define acid and base and interpret the pH scale.
Section: 02.02
Topic: Inorganic compounds and solutions
8. The high heat capacity of water makes it a very ineffective coolant.
FALSE
Accessibility: Keyboard Navigation
Blooms Level: 2. Understand
Gradable: automatic
HAPS Objective: C03.01 Discuss the physiologically important properties of water.
HAPS Topic: Module C03 Inorganic compounds and solutions.
Learning Outcome: 02.02b Describe the biologically important properties of water.
Section: 02.02
Topic: Inorganic compounds and solutions
9. In an exchange reaction, covalent bonds are broken and new covalent bonds are formed.
TRUE
Accessibility: Keyboard Navigation
Blooms Level: 2. Understand
Gradable: automatic
HAPS Objective: C04.03 Define and give examples of dehydration synthesis and hydrolysis reactions.
HAPS Topic: Module C04 Organic compounds.
Learning Outcome: 02.03c List and define the fundamental types of chemical reactions.
2-2
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McGraw-Hill Education.
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Section: 02.03
Topic: Chemical bonding
10. Chemical reactions in which larger molecules are broken down into smaller ones are called catabolic
reactions.
TRUE
Accessibility: Keyboard Navigation
Blooms Level: 1. Remember
Gradable: automatic
HAPS Objective: O02.01 Define metabolism, anabolism and catabolism.
HAPS Topic: Module O02 Introduction to metabolism.
Learning Outcome: 02.03e Define metabolism and its two subdivisions.
Section: 02.03
Topic: Atoms and molecules
11. The opposite of a dehydration synthesis reaction is a hydrolysis reaction.
TRUE
Accessibility: Keyboard Navigation
Blooms Level: 2. Understand
Gradable: automatic
HAPS Objective: C04.03 Define and give examples of dehydration synthesis and hydrolysis reactions.
HAPS Topic: Module C04 Organic compounds.
Learning Outcome: 02.03c List and define the fundamental types of chemical reactions.
Section: 02.03
Topic: Atoms and molecules
12. Unsaturated fatty acids have as much hydrogen as they can carry.
FALSE
Accessibility: Keyboard Navigation
Blooms Level: 2. Understand
Gradable: automatic
HAPS Objective: C04.04b Compare and contrast general molecular structure of carbohydrates, proteins, lipids and nucleic acids.
HAPS Topic: Module C04 Organic compounds.
Learning Outcome: 02.04e Discuss the types and functions of lipids.
Section: 02.04
Topic: Organic compounds
13. A dipeptide is a molecule with two peptide bonds.
FALSE
Accessibility: Keyboard Navigation
Blooms Level: 1. Remember
Gradable: automatic
HAPS Objective: C04.04a Identify the monomers and polymers of carbohydrates, proteins, lipids and nucleic acids.
HAPS Topic: Module C04 Organic compounds.
Learning Outcome: 02.04f Discuss protein structure and function.
Section: 02.04
Topic: Organic compounds
14. All amino acids have both a carboxyl group and an amino group attached to a central carbon.
TRUE
Accessibility: Keyboard Navigation
Blooms Level: 1. Remember
Gradable: automatic
HAPS Objective: C04.04b Compare and contrast general molecular structure of carbohydrates, proteins, lipids and nucleic acids.
2-3
Copyright © 2018 McGraw-Hill Education. All rights reserved. No reproduction or distribution without the prior written consent of
McGraw-Hill Education.
and-function-8th-edition-by-kenneth-saladin/
Chapter 02 The Chemistry of Life Answer Key
True / False Questions
1. Minerals are organic elements extracted from the soil by plants.
FALSE
Accessibility: Keyboard Navigation
Blooms Level: 1. Remember
Gradable: automatic
HAPS Objective: O01.01e List the important dietary minerals and describe the major uses of each mineral in the body.
HAPS Topic: Module O01 Nutrition.
Learning Outcome: 02.01c State the functions of minerals in the body.
Section: 02.01
Topic: Atoms and molecules
2. Molecules composed of two or more atoms are called compounds.
FALSE
Accessibility: Keyboard Navigation
Blooms Level: 3. Apply
Gradable: automatic
HAPS Objective: C01.03 Compare and contrast the terms atoms, molecules, elements, and compounds.
HAPS Topic: Module C01 Atoms and molecules.
Learning Outcome: 02.01b Distinguish between elements and compounds.
Section: 02.01
Topic: Atoms and molecules
3. Hydrogen, deuterium, and tritium are three isotopes of hydrogen.
TRUE
Accessibility: Keyboard Navigation
Blooms Level: 1. Remember
Gradable: automatic
HAPS Objective: C01.01c Explain how ions and isotopes are produced by changing the relative number of specific subatomic particles with
respect to the structure of an atom.
HAPS Topic: Module C01 Atoms and molecules.
Learning Outcome: 02.01d Explain the basis for radioactivity and the types and hazards of ionizing radiation.
Section: 02.01
Topic: Atoms and molecules
4. Potassium, sodium, and chlorine are trace elements.
FALSE
Accessibility: Keyboard Navigation
Blooms Level: 1. Remember
Gradable: automatic
HAPS Objective: C01.03 Compare and contrast the terms atoms, molecules, elements, and compounds.
HAPS Topic: Module C01 Atoms and molecules.
Learning Outcome: 02.01b Distinguish between elements and compounds.
Section: 02.01
Topic: Atoms and molecules
2-1
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McGraw-Hill Education.
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and-function-8th-edition-by-kenneth-saladin/
5. Ionic bonds break apart in water more easily than covalent bonds do.
TRUE
Accessibility: Keyboard Navigation
Blooms Level: 2. Understand
Gradable: automatic
HAPS Objective: C02.01a List each type of bond in order by relative strength with respect to non-polar covalent, polar covalent, ionic, and
hydrogen bonds.
HAPS Topic: Module C02 Chemical bonding.
Learning Outcome: 02.01f Define the types of chemical bonds.
Section: 02.01
Topic: Chemical bonding
6. A solution is a mixture of two or more substances that are physically blended but not chemically
combined.
TRUE
Accessibility: Keyboard Navigation
Blooms Level: 2. Understand
Gradable: automatic
HAPS Objective: C03.02 Distinguish among the terms solution, solute, solvent, colloid suspension, and emulsion.
HAPS Topic: Module C03 Inorganic compounds and solutions.
Learning Outcome: 02.02c Show how three kinds of mixtures differ from each other.
Section: 02.02
Topic: Inorganic compounds and solutions
7. The pH of blood plasma is approximately 7.4, which is slightly acidic.
FALSE
Accessibility: Keyboard Navigation
Blooms Level: 1. Remember
Gradable: automatic
HAPS Objective: C03.05 State acidic, neutral, and alkaline pH values.
HAPS Topic: Module C03 Inorganic compounds and solutions.
Learning Outcome: 02.02d Define acid and base and interpret the pH scale.
Section: 02.02
Topic: Inorganic compounds and solutions
8. The high heat capacity of water makes it a very ineffective coolant.
FALSE
Accessibility: Keyboard Navigation
Blooms Level: 2. Understand
Gradable: automatic
HAPS Objective: C03.01 Discuss the physiologically important properties of water.
HAPS Topic: Module C03 Inorganic compounds and solutions.
Learning Outcome: 02.02b Describe the biologically important properties of water.
Section: 02.02
Topic: Inorganic compounds and solutions
9. In an exchange reaction, covalent bonds are broken and new covalent bonds are formed.
TRUE
Accessibility: Keyboard Navigation
Blooms Level: 2. Understand
Gradable: automatic
HAPS Objective: C04.03 Define and give examples of dehydration synthesis and hydrolysis reactions.
HAPS Topic: Module C04 Organic compounds.
Learning Outcome: 02.03c List and define the fundamental types of chemical reactions.
2-2
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McGraw-Hill Education.
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and-function-8th-edition-by-kenneth-saladin/
Section: 02.03
Topic: Chemical bonding
10. Chemical reactions in which larger molecules are broken down into smaller ones are called catabolic
reactions.
TRUE
Accessibility: Keyboard Navigation
Blooms Level: 1. Remember
Gradable: automatic
HAPS Objective: O02.01 Define metabolism, anabolism and catabolism.
HAPS Topic: Module O02 Introduction to metabolism.
Learning Outcome: 02.03e Define metabolism and its two subdivisions.
Section: 02.03
Topic: Atoms and molecules
11. The opposite of a dehydration synthesis reaction is a hydrolysis reaction.
TRUE
Accessibility: Keyboard Navigation
Blooms Level: 2. Understand
Gradable: automatic
HAPS Objective: C04.03 Define and give examples of dehydration synthesis and hydrolysis reactions.
HAPS Topic: Module C04 Organic compounds.
Learning Outcome: 02.03c List and define the fundamental types of chemical reactions.
Section: 02.03
Topic: Atoms and molecules
12. Unsaturated fatty acids have as much hydrogen as they can carry.
FALSE
Accessibility: Keyboard Navigation
Blooms Level: 2. Understand
Gradable: automatic
HAPS Objective: C04.04b Compare and contrast general molecular structure of carbohydrates, proteins, lipids and nucleic acids.
HAPS Topic: Module C04 Organic compounds.
Learning Outcome: 02.04e Discuss the types and functions of lipids.
Section: 02.04
Topic: Organic compounds
13. A dipeptide is a molecule with two peptide bonds.
FALSE
Accessibility: Keyboard Navigation
Blooms Level: 1. Remember
Gradable: automatic
HAPS Objective: C04.04a Identify the monomers and polymers of carbohydrates, proteins, lipids and nucleic acids.
HAPS Topic: Module C04 Organic compounds.
Learning Outcome: 02.04f Discuss protein structure and function.
Section: 02.04
Topic: Organic compounds
14. All amino acids have both a carboxyl group and an amino group attached to a central carbon.
TRUE
Accessibility: Keyboard Navigation
Blooms Level: 1. Remember
Gradable: automatic
HAPS Objective: C04.04b Compare and contrast general molecular structure of carbohydrates, proteins, lipids and nucleic acids.
2-3
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McGraw-Hill Education.
