HUMAN ANATOMY & PHYSIOLOGY
CERTIFICATION TEST BANK 2026
COMPREHENSIVE QUESTIONS AND
SOLUTIONS GRADED A+
● What is physiology? Answer: The study of the functions of the human
body and its parts.
● What are the levels of organization in the human body? Answer:
Subatomic particles, atoms, molecules, macromolecules, organelles,
cells, tissues, organs, organ systems, organism.
● What is the basic unit of structure and function in the human body?
Answer: Cell.
● What is a tissue? Answer: A layer or mass of cells with a specific
function.
● What is an organ? Answer: A group of different tissues with a specific
function.
● What is an organ system? Answer: A group of organs that work
together for a common function.
, ● What is homeostasis? Answer: The maintenance of a stable internal
environment.
● What are the three parts of a homeostatic mechanism? Answer:
Receptor, control center, effector.
● What is negative feedback? Answer: A homeostatic mechanism where
effectors return conditions toward normal range, reducing deviation
from the set point.
● What role does water play in the human body? Answer: It is the most
abundant substance, necessary for metabolic processes, transport of
substances, and regulation of body temperature.
● What is the significance of oxygen for organisms? Answer: It is used
to release energy from nutrients.
● What is the role of heat in the body? Answer: It helps maintain body
temperature and partly controls the rate of metabolic reactions.
● What is the function of pressure in the human body? Answer: It
applies force on objects, important for breathing and keeping blood
flowing.
CERTIFICATION TEST BANK 2026
COMPREHENSIVE QUESTIONS AND
SOLUTIONS GRADED A+
● What is physiology? Answer: The study of the functions of the human
body and its parts.
● What are the levels of organization in the human body? Answer:
Subatomic particles, atoms, molecules, macromolecules, organelles,
cells, tissues, organs, organ systems, organism.
● What is the basic unit of structure and function in the human body?
Answer: Cell.
● What is a tissue? Answer: A layer or mass of cells with a specific
function.
● What is an organ? Answer: A group of different tissues with a specific
function.
● What is an organ system? Answer: A group of organs that work
together for a common function.
, ● What is homeostasis? Answer: The maintenance of a stable internal
environment.
● What are the three parts of a homeostatic mechanism? Answer:
Receptor, control center, effector.
● What is negative feedback? Answer: A homeostatic mechanism where
effectors return conditions toward normal range, reducing deviation
from the set point.
● What role does water play in the human body? Answer: It is the most
abundant substance, necessary for metabolic processes, transport of
substances, and regulation of body temperature.
● What is the significance of oxygen for organisms? Answer: It is used
to release energy from nutrients.
● What is the role of heat in the body? Answer: It helps maintain body
temperature and partly controls the rate of metabolic reactions.
● What is the function of pressure in the human body? Answer: It
applies force on objects, important for breathing and keeping blood
flowing.
