Ch. 2 (Anatomy & Physiology:
An Integrative Approach 2nd
Edition) Exam Questions and
Complete Solutions
User [Date] [Course title]
,atom - Correct Answer: the smallest particle that exhibits the chemical properties of an element
element - Correct Answer: substance composed of only one type of atom;
element facts - Correct Answer: 92 naturally occurring elements; hydrogen is the lightest and smallest;
uranium is the largest and heaviest
periodic table of elements - Correct Answer: elements are grouped into major, minor, and trace
elements based on the percentage each composes by weight in the human body
Most common Elements of the Human Body - Correct Answer: 12 of them occur in living organisms in
greater than trace amounts
Major Elements of Human Body - Correct Answer: Compose more than 98% of body weight; oxygen,
carbon, hydrogen, nitrogen, calcium, phosphorus
Minor Elements of Human Body - Correct Answer: Compose less than 1% of body weight; sulfur,
potassium, sodium, chlorine, magnesium, iron
Atoms are composed of - Correct Answer: neutrons, protons, and electrons
Subatomic particles - Correct Answer: neutrons, protons, and electrons
atomic mass unit (amu) - Correct Answer: the mass of a subatomic particle is very small; consider 1 amu
is equal to 1.66X10^-27 kilograms
neutron - Correct Answer: uncharged; meaning it is neutral
proton - Correct Answer: positive charge of one (+1)
atomic nucleus - Correct Answer:
, electron - Correct Answer: negative charge of one (-1); very small mass- only 1/1800th of the mass of a
proton or neutron
chemical symbol - Correct Answer: assigned to each element; identified by first letter or first plus an
additional letter of its English name
atomic number - Correct Answer: indicates the number of protons in an atom of that element ;located
above its symbol in the period table
atomic mass - Correct Answer: indicates the mass of both protons and neutrons in the atomic nucleus,
reflects the heaviness of an element's atoms
O - Correct Answer: Oxygen- 65%
C - Correct Answer: Carbon- 18%
H - Correct Answer: Hydrogen- 10%
N - Correct Answer: Nitrogen- 3%
Ca - Correct Answer: Calcium-1.5%
P - Correct Answer: Phosphorus-1%
S - Correct Answer: Sulfur- 0.25%
K - Correct Answer: Potassium- 0.20%
Na - Correct Answer: Sodium- 0.15%
An Integrative Approach 2nd
Edition) Exam Questions and
Complete Solutions
User [Date] [Course title]
,atom - Correct Answer: the smallest particle that exhibits the chemical properties of an element
element - Correct Answer: substance composed of only one type of atom;
element facts - Correct Answer: 92 naturally occurring elements; hydrogen is the lightest and smallest;
uranium is the largest and heaviest
periodic table of elements - Correct Answer: elements are grouped into major, minor, and trace
elements based on the percentage each composes by weight in the human body
Most common Elements of the Human Body - Correct Answer: 12 of them occur in living organisms in
greater than trace amounts
Major Elements of Human Body - Correct Answer: Compose more than 98% of body weight; oxygen,
carbon, hydrogen, nitrogen, calcium, phosphorus
Minor Elements of Human Body - Correct Answer: Compose less than 1% of body weight; sulfur,
potassium, sodium, chlorine, magnesium, iron
Atoms are composed of - Correct Answer: neutrons, protons, and electrons
Subatomic particles - Correct Answer: neutrons, protons, and electrons
atomic mass unit (amu) - Correct Answer: the mass of a subatomic particle is very small; consider 1 amu
is equal to 1.66X10^-27 kilograms
neutron - Correct Answer: uncharged; meaning it is neutral
proton - Correct Answer: positive charge of one (+1)
atomic nucleus - Correct Answer:
, electron - Correct Answer: negative charge of one (-1); very small mass- only 1/1800th of the mass of a
proton or neutron
chemical symbol - Correct Answer: assigned to each element; identified by first letter or first plus an
additional letter of its English name
atomic number - Correct Answer: indicates the number of protons in an atom of that element ;located
above its symbol in the period table
atomic mass - Correct Answer: indicates the mass of both protons and neutrons in the atomic nucleus,
reflects the heaviness of an element's atoms
O - Correct Answer: Oxygen- 65%
C - Correct Answer: Carbon- 18%
H - Correct Answer: Hydrogen- 10%
N - Correct Answer: Nitrogen- 3%
Ca - Correct Answer: Calcium-1.5%
P - Correct Answer: Phosphorus-1%
S - Correct Answer: Sulfur- 0.25%
K - Correct Answer: Potassium- 0.20%
Na - Correct Answer: Sodium- 0.15%
