NR Human Anatomy and Physiology Midterm Exam with
Complete Solutions
Package Title:
Testbank Course Title:
PAP14 Chapter
Number: 02
Question type: Multiple Choice
1) What are the four major elements found in the chemicals that comprise the human body?
a) nitrogen, oxygen, calcium, sodium
b) hydrogen, carbon, phosphorus, calcium
c) carbon, hydrogen, oxygen and nitrogen
d) oxygen, nitrogen, potassium, calcium
e) potassium, phosphorus, sodium,
hydrogen Answer: c
Difficulty: Easy
Study Objective 1: SO 2.1 Describe the main chemicals of the human body and the structures of
the atoms, ions, molecules, and compounds.
Study Objective 2: SO 2.1.1 Identify the main chemical elements of the human body.
Section Reference 1: Sec 2.1 How Matter is Organized
2) The three types of subatomic particles that are important for understanding chemical
reactions in the human body are
a) neutrons, quarks, and muons.
b) protons, neutrons, and electrons.
c) muons, positons, and neutrons.
d) electrons, quarks, and protons.
e) positons, protons, and neutrons.
Answer: b
Difficulty: Easy
Study Objective 1: SO 2.1 Describe the main chemicals of the human body and the structures of
the atoms, ions, molecules, and compounds.
Study Objective 2: SO 2.1.1 Identify the main chemical elements of the human body.
Section Reference 1: Sec 2.1 How Matter is Organized
,3) Which of the following subatomic particles has a neutral charge?
a) neutron
,b) electron
c) proton
d) Both neutron and electron.
e) All of these choices.
Answer: a
Difficulty: Easy
Study Objective 1: SO 2.1 Describe the main chemicals of the human body and the structures of
the atoms, ions, molecules, and compounds.
Study Objective 2: SO 2.1.2 Describe the structures of atoms, ions, molecules, free radicals, and
compounds.
Section Reference 1: Sec 2.1 How Matter is Organized
4) What region of an atom contains the protons and neutrons?
a) cloud
b) nucleus
c) element
d) ring
e) shell
Answer: b
Difficulty: Easy
Study Objective 1: SO 2.1 Describe the main chemicals of the human body and the structures of
the atoms, ions, molecules, and compounds.
Study Objective 2: SO 2.1.2 Describe the structures of atoms, ions, molecules, free radicals, and
compounds.
Section Reference 1: Sec 2.1 How Matter is Organized
5) The number of protons in an atom is represented by an element’s
a) mass number.
b) atomic number.
c) atomic mass.
d) valence number.
e) None of these choices.
Answer: b
Difficulty: Easy
Study Objective 1: SO 2.1 Describe the main chemicals of the human body and the structures of
the atoms, ions, molecules, and compounds.
, Study Objective 2: SO 2.1.2 Describe the structures of atoms, ions, molecules, free radicals, and
compounds.
Section Reference 1: Sec 2.1 How Matter is Organized
6) The nucleus of unstable of an element will decay leading to emission of radiation.
a) compounds
b) cations
c) anions
d) isotopes
e) molecules
Answer: d
Difficulty: Medium
Study Objective 1: SO 2.1 Describe the main chemicals of the human body and the structures of
the atoms, ions, molecules, and compounds.
Study Objective 2: SO 2.1.2 Describe the structures of atoms, ions, molecules, free radicals, and
compounds.
Section Reference 1: Sec 2.1 How Matter is Organized
7) This refers to a weighted average of the atomic weights of all naturally occurring isotopes of
an element.
a) mass number
b) atomic number
c) atomic mass
d) ionic mass
e) covalent mass
Answer: c
Difficulty: Medium
Study Objective 1: SO 2.1 Describe the main chemicals of the human body and the structures of
the atoms, ions, molecules, and compounds.
Study Objective 2: SO 2.1.2 Describe the structures of atoms, ions, molecules, free radicals, and
compounds.
Section Reference 1: Sec 2.1 How Matter is
Organized Question type: Essay
Complete Solutions
Package Title:
Testbank Course Title:
PAP14 Chapter
Number: 02
Question type: Multiple Choice
1) What are the four major elements found in the chemicals that comprise the human body?
a) nitrogen, oxygen, calcium, sodium
b) hydrogen, carbon, phosphorus, calcium
c) carbon, hydrogen, oxygen and nitrogen
d) oxygen, nitrogen, potassium, calcium
e) potassium, phosphorus, sodium,
hydrogen Answer: c
Difficulty: Easy
Study Objective 1: SO 2.1 Describe the main chemicals of the human body and the structures of
the atoms, ions, molecules, and compounds.
Study Objective 2: SO 2.1.1 Identify the main chemical elements of the human body.
Section Reference 1: Sec 2.1 How Matter is Organized
2) The three types of subatomic particles that are important for understanding chemical
reactions in the human body are
a) neutrons, quarks, and muons.
b) protons, neutrons, and electrons.
c) muons, positons, and neutrons.
d) electrons, quarks, and protons.
e) positons, protons, and neutrons.
Answer: b
Difficulty: Easy
Study Objective 1: SO 2.1 Describe the main chemicals of the human body and the structures of
the atoms, ions, molecules, and compounds.
Study Objective 2: SO 2.1.1 Identify the main chemical elements of the human body.
Section Reference 1: Sec 2.1 How Matter is Organized
,3) Which of the following subatomic particles has a neutral charge?
a) neutron
,b) electron
c) proton
d) Both neutron and electron.
e) All of these choices.
Answer: a
Difficulty: Easy
Study Objective 1: SO 2.1 Describe the main chemicals of the human body and the structures of
the atoms, ions, molecules, and compounds.
Study Objective 2: SO 2.1.2 Describe the structures of atoms, ions, molecules, free radicals, and
compounds.
Section Reference 1: Sec 2.1 How Matter is Organized
4) What region of an atom contains the protons and neutrons?
a) cloud
b) nucleus
c) element
d) ring
e) shell
Answer: b
Difficulty: Easy
Study Objective 1: SO 2.1 Describe the main chemicals of the human body and the structures of
the atoms, ions, molecules, and compounds.
Study Objective 2: SO 2.1.2 Describe the structures of atoms, ions, molecules, free radicals, and
compounds.
Section Reference 1: Sec 2.1 How Matter is Organized
5) The number of protons in an atom is represented by an element’s
a) mass number.
b) atomic number.
c) atomic mass.
d) valence number.
e) None of these choices.
Answer: b
Difficulty: Easy
Study Objective 1: SO 2.1 Describe the main chemicals of the human body and the structures of
the atoms, ions, molecules, and compounds.
, Study Objective 2: SO 2.1.2 Describe the structures of atoms, ions, molecules, free radicals, and
compounds.
Section Reference 1: Sec 2.1 How Matter is Organized
6) The nucleus of unstable of an element will decay leading to emission of radiation.
a) compounds
b) cations
c) anions
d) isotopes
e) molecules
Answer: d
Difficulty: Medium
Study Objective 1: SO 2.1 Describe the main chemicals of the human body and the structures of
the atoms, ions, molecules, and compounds.
Study Objective 2: SO 2.1.2 Describe the structures of atoms, ions, molecules, free radicals, and
compounds.
Section Reference 1: Sec 2.1 How Matter is Organized
7) This refers to a weighted average of the atomic weights of all naturally occurring isotopes of
an element.
a) mass number
b) atomic number
c) atomic mass
d) ionic mass
e) covalent mass
Answer: c
Difficulty: Medium
Study Objective 1: SO 2.1 Describe the main chemicals of the human body and the structures of
the atoms, ions, molecules, and compounds.
Study Objective 2: SO 2.1.2 Describe the structures of atoms, ions, molecules, free radicals, and
compounds.
Section Reference 1: Sec 2.1 How Matter is
Organized Question type: Essay
