Test Bank For Anatomy And Physiology 9th Edition by Marieb
Patton: Anatomy and Physiology, 9th Edition Chapter 03: Chemical Basis of Life
Test Bank
MULTIPLE CHOICE
1. Which of the following represents a trace element in the body?
a. Sulfur
b. Chlorine
c. Iron
d. Phosphorus
ANS: C
DIF: Memorization
REF:
TOP: Basic Chemistry
2. The kind of element is determined by the number of:
a. protons.
b. neutrons.
c. mesotrons.
d. electrons.
ANS: A
DIF: Application
REF:
TOP: Atomic Number and Mass Number
3. Atomic weight is determined by the number of:
a. protons and electrons.
b. neutrons and electrons.
c. neutrons, protons, and electrons.
d. protons and neutrons.
ANS: D
DIF: Application
REF:
TOP: Atomic Number and Mass Number
4. Carbon has an atomic number of 6. The number of electrons found in the first shell is:
a. two.
b. four.
c. six.
d. eight.
ANS: A
DIF: Application
REF:
TOP: Energy Levels
5. The atomic number of carbon is 6. How many unpaired electrons are in its outer shell?
a. Two
b. Three
c. Four
d. Five
ANS: C
DIF: Application
REF:
TOP: Energy Levels
6. A negatively charged subatomic particle that moves around the nucleus is a(n):
a. orbital.
b. proton.
c. neutron.
d. electron.
ANS: D
DIF: Memorization
REF:
TOP: Atomic Structure
7. When atoms combine, they may gain, lose, or share:
a. electrons.
b. protons.
c. neutrons.
d. nuclei.
ANS: A
DIF: Application
REF:
TOP: Attraction Between Atoms
8. An ionic bond is formed by:
a. two or more positive ions combining.
b. two or more negative ions combining.
c. a positive and a negative ion attracting each other.
d. sharing of a pair of electrons.
ANS: C
DIF: Application
REF:
TOP: Ionic Bonds
9. An example of an element would be:
a. Ne.
b. CO2.
c. C6H12O6.
d. H2O.
ANS: A
DIF: Application
REF:
TOP: Elements and Compounds
10. An isotope of an element contains different numbers of ____ from other atoms of the same element.
a. electrons
b. protons
c. neutrons
d. both protons and neutrons
ANS: C
DIF: Application
REF:
TOP: Isotopes
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