ECPI: ANATOMY/PHYSIOLOGY CHAPTER 1
Exam Questions and Answers with Verified
Solutions | Latest Updated 2026
WHAT DOES ANATOMY Study of structure of the human body and
STUDY? its parts
- Derived from the Greek word "cutting up"
WHAT DOES PHYSIOLOGY Study of the functions of the human body
STUDY? and its
parts
- Derived from the Greek word
"relationship to
nature"
LEVELS OF ORGANIZATION IN 1. Subatomic particles
ORDER: 2. Atom
3. Molecule
4. Macromolecule
5. Organelle
6. Cell
7. Tissue
8. Organ
9. Organ System
10. Organism
,SUBATOMIC PARTICLES: Protons, neutrons, and electrons that
make up cells
Level #1 in level of organizations (lowest
level of
organization)
ATOM: Tiny particles that make up chemicals
(hydrogen,
carbon)
Level #2 in level of organizations
MOLECULE: Particles consisting of atoms joined
together
(water, glucose)
Level #3 in level of organizations
MACROMOLECULE: Large particles consisting of molecule
(DNA,
Protein)
Level #4 in level of organizations
ORGANELLE: Functional part of a cell (mitochondrion,
lysosome)
Level #5 in level of organizations
CELL: Basic unit of structure and functions
(muscle, nerve,
or blood cell)
Level #6 in level of organizations
, TISSUE: Layer or mass of cells with specific
function
(adipose tissue)
Level #7 in level of organizations
ORGAN: Group of different tissues with a function
(heart,
kidney, stomach)
Level #8 in level of organizations
ORGAN SYSTEM: Group of organs with common function
(digestive
system)
Level #9 in level of organization
ORGANISM: Composed of organ systems interacting
(human)
Level #10 in level of organization (highest
level)
LIFE DEPENDS ON 5 1. Water
ENVIRONMENTAL FACTORS. 2. Food
WHICH ONES? 3. Oxygen (gas)
4. Heat
5. Pressure
WATER: - Most abundant substance in body
- Environment for metabolic processes
- Required for transport of substances
- Regulation of body temperature
- Water in cell: 65% - intracellular fluid
- Water outside of cell: 55%
Exam Questions and Answers with Verified
Solutions | Latest Updated 2026
WHAT DOES ANATOMY Study of structure of the human body and
STUDY? its parts
- Derived from the Greek word "cutting up"
WHAT DOES PHYSIOLOGY Study of the functions of the human body
STUDY? and its
parts
- Derived from the Greek word
"relationship to
nature"
LEVELS OF ORGANIZATION IN 1. Subatomic particles
ORDER: 2. Atom
3. Molecule
4. Macromolecule
5. Organelle
6. Cell
7. Tissue
8. Organ
9. Organ System
10. Organism
,SUBATOMIC PARTICLES: Protons, neutrons, and electrons that
make up cells
Level #1 in level of organizations (lowest
level of
organization)
ATOM: Tiny particles that make up chemicals
(hydrogen,
carbon)
Level #2 in level of organizations
MOLECULE: Particles consisting of atoms joined
together
(water, glucose)
Level #3 in level of organizations
MACROMOLECULE: Large particles consisting of molecule
(DNA,
Protein)
Level #4 in level of organizations
ORGANELLE: Functional part of a cell (mitochondrion,
lysosome)
Level #5 in level of organizations
CELL: Basic unit of structure and functions
(muscle, nerve,
or blood cell)
Level #6 in level of organizations
, TISSUE: Layer or mass of cells with specific
function
(adipose tissue)
Level #7 in level of organizations
ORGAN: Group of different tissues with a function
(heart,
kidney, stomach)
Level #8 in level of organizations
ORGAN SYSTEM: Group of organs with common function
(digestive
system)
Level #9 in level of organization
ORGANISM: Composed of organ systems interacting
(human)
Level #10 in level of organization (highest
level)
LIFE DEPENDS ON 5 1. Water
ENVIRONMENTAL FACTORS. 2. Food
WHICH ONES? 3. Oxygen (gas)
4. Heat
5. Pressure
WATER: - Most abundant substance in body
- Environment for metabolic processes
- Required for transport of substances
- Regulation of body temperature
- Water in cell: 65% - intracellular fluid
- Water outside of cell: 55%
