Anatomy and Physiology Exam 3
QUESTIONS AND ANSWERS
What smaller cavity within the thoracic cavity houses the heart, great blood vessels,
esophagus, and trachea? (CORRECT ANSWER)mediastinum
Which serous membrane covers the abdominal organs? (CORRECT
ANSWER)Peritoneum
T or F: The simplest level of organization in the human body is the cellular level
(CORRECT ANSWER)false
Which of the following is the correct sequence from simplest to most complex of the
structural organization of the body? (CORRECT ANSWER)chemical, cellular, tissue,
organ, organ system, organism
In lab, you will study the overall structures and shape of the femur bone without the
aid of a microscope. This study is known as (CORRECT ANSWER)gross anatomy
A person who is standing facing forward with hands at sides, palms facing forward, is
in the (CORRECT ANSWER)anatomical position
Which directional term indicates the front side of the body (CORRECT
ANSWER)anterior (ventral)
What are the sub cavities of the dorsal body cavity? (CORRECT ANSWER)cranial
and vertical (spinal)
The maintenance of a relatively constant internal environment is (CORRECT
ANSWER)homeostasis
Which of the following best summarizes the principle of complementary of structure
and function (CORRECT ANSWER)form follows function
T or F: Negative feedback loops produce responses in the opposite direction of the
initial stimulus while positive feedback loops produce responses in the same
direction of the initial stimulus (CORRECT ANSWER)true
What predicts the elements to which an atom belongs? (CORRECT ANSWER)total
number of protons
The four most common elements comprising 96% of the body's mass is (CORRECT
ANSWER)oxygen, nitrogen, hydrogen, carbon
What contributes to the calculations of the mass number (CORRECT ANSWER)sum
of protons and neutrons
Atoms that satisfy the octet rule are said to be (CORRECT ANSWER)reactive
T or F: In a solution, the solute dissolves the solvent (CORRECT ANSWER)false
Ionic bonds result from (CORRECT ANSWER)the transfer of electrons from a metal
to a nonmetal
What happens in oxidation reduction reactions? (CORRECT ANSWER)Electron
exchange occurs
Which of the following represents as an exchange reaction? (CORRECT
ANSWER)AB+CD--->AD+BC
T or F: Enzymes bind with substrates at the active sites and are permanently altered
by the binding process (CORRECT ANSWER)false
What chemical binds free hydrogen ions in solution? (CORRECT ANSWER)base
What is the function of a buffer? (CORRECT ANSWER)buffers prevent large swings
in pH when an acid or base is added to a solution
T or F: Solution with a pH less than 7 are considered basic or alkaline (CORRECT
ANSWER)false
QUESTIONS AND ANSWERS
What smaller cavity within the thoracic cavity houses the heart, great blood vessels,
esophagus, and trachea? (CORRECT ANSWER)mediastinum
Which serous membrane covers the abdominal organs? (CORRECT
ANSWER)Peritoneum
T or F: The simplest level of organization in the human body is the cellular level
(CORRECT ANSWER)false
Which of the following is the correct sequence from simplest to most complex of the
structural organization of the body? (CORRECT ANSWER)chemical, cellular, tissue,
organ, organ system, organism
In lab, you will study the overall structures and shape of the femur bone without the
aid of a microscope. This study is known as (CORRECT ANSWER)gross anatomy
A person who is standing facing forward with hands at sides, palms facing forward, is
in the (CORRECT ANSWER)anatomical position
Which directional term indicates the front side of the body (CORRECT
ANSWER)anterior (ventral)
What are the sub cavities of the dorsal body cavity? (CORRECT ANSWER)cranial
and vertical (spinal)
The maintenance of a relatively constant internal environment is (CORRECT
ANSWER)homeostasis
Which of the following best summarizes the principle of complementary of structure
and function (CORRECT ANSWER)form follows function
T or F: Negative feedback loops produce responses in the opposite direction of the
initial stimulus while positive feedback loops produce responses in the same
direction of the initial stimulus (CORRECT ANSWER)true
What predicts the elements to which an atom belongs? (CORRECT ANSWER)total
number of protons
The four most common elements comprising 96% of the body's mass is (CORRECT
ANSWER)oxygen, nitrogen, hydrogen, carbon
What contributes to the calculations of the mass number (CORRECT ANSWER)sum
of protons and neutrons
Atoms that satisfy the octet rule are said to be (CORRECT ANSWER)reactive
T or F: In a solution, the solute dissolves the solvent (CORRECT ANSWER)false
Ionic bonds result from (CORRECT ANSWER)the transfer of electrons from a metal
to a nonmetal
What happens in oxidation reduction reactions? (CORRECT ANSWER)Electron
exchange occurs
Which of the following represents as an exchange reaction? (CORRECT
ANSWER)AB+CD--->AD+BC
T or F: Enzymes bind with substrates at the active sites and are permanently altered
by the binding process (CORRECT ANSWER)false
What chemical binds free hydrogen ions in solution? (CORRECT ANSWER)base
What is the function of a buffer? (CORRECT ANSWER)buffers prevent large swings
in pH when an acid or base is added to a solution
T or F: Solution with a pH less than 7 are considered basic or alkaline (CORRECT
ANSWER)false
