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BIOLOGY 12TH EDITION RAVEN TEST BANK




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Biology, 12e (Raven)
Chapter 2 The Nature of Molecules and the Properties of Water

1) Matter is composed of:
A) atoms
B) energy
C) mass
D) molecules

Answer: A
Section: 02.01
Topic: The Nature of Atoms
Bloom's: 1. Remember
LO: 02.01.01 Define an element based on its composition.
Accessibility: Keyboard Navigation

2) All atoms possess the ability to do work. The term that is defined as the ability to do work is:
A) matter
B) energy
C) molecules
D) space

Answer: B
Section: 02.01 NURSINGTB.COM
Topic: The Nature of Atoms
Bloom's: 1. Remember
LO: 02.01.02 Describe the relationship between atomic structure and chemical properties.
Accessibility: Keyboard Navigation

3) The number of protons in a given atom is equal to its:
A) atomic number
B) mass
C) neutron number
D) molecular number

Answer: A
Section: 02.01
Topic: The Nature of Atoms
Bloom's: 1. Remember
LO: 02.01.02 Describe the relationship between atomic structure and chemical properties.
Accessibility: Keyboard Navigation




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4) Isotopes that are unstable and decay when their nucleus breaks up into elements with lower
atomic numbers, emitting significant amounts of energy in the process, are called:
A) energetic
B) ionic
C) radioactive
D) isometric

Answer: C
Section: 02.01
Topic: The Nature of Atoms
Bloom's: 1. Remember
LO: 02.01.02 Describe the relationship between atomic structure and chemical properties.
Accessibility: Keyboard Navigation

5) Atoms containing a specific number of protons are called:
A) minerals
B) elements
C) metals
D) molecules

Answer: B
Section: 02.02
Topic: Elements Found in Living Systems
Bloom's: 1. Remember NURSINGTB.COM
LO: 02.02.01 Relate atomic structure to the periodic table of the elements.
Accessibility: Keyboard Navigation

6) Sugars dissolve well in water because of water's .
A) ionic bonds
B) cohesiveness
C) hydrophobic exclusion
D) polarity

Answer: D
Section: 02.03
Topic: The Nature of Chemical Bonds
Bloom's: 2. Understand
LO: 02.03.03 Contrast polar and nonpolar covalent bonds.
Accessibility: Keyboard Navigation




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No reproduction or distribution without the prior written onsent of McGraw-Hill Education.


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7) The negative logarithm of the hydrogen ion concentration in the solution is referred to as:
A) pH
B) atomic mass
C) -OH concentration
D) electronegativity
E) specific heat

Answer: A
Section: 02.06
Topic: Acids and Bases
Bloom's: 1. Remember
LO: 02.06.01 Define acids, bases, and the pH scale.
Accessibility: Keyboard Navigation

8) Bicarbonate ions in the blood can absorb hydrogen ions, keeping pH balanced. Bicarbonate is
acting as a in blood.
A) buffer
B) acid
C) base
D) alkaline

Answer: A
Section: 02.06
Topic: Acids and Bases NURSINGTB.COM
Bloom's: 2. Understand
LO: 02.06.01 Define acids, bases, and the pH scale.
Accessibility: Keyboard Navigation

9) Atomic nuclei contain protons and .
A) isomers
B) ions
C) moles
D) neutrons

Answer: D
Section: 02.01
Topic: The Nature of Atoms
Bloom's: 1. Remember
LO: 02.01.01 Define an element based on its composition.
Accessibility: Keyboard Navigation




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Copyright © 2020 McGraw-Hill Education. All rights reserved.
No reproduction or distribution without the prior written onsent of McGraw-Hill Education.


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