Cell
WORDS
DEFINITION
Small
Alive
Functions
Organelle
Inside structures
The basic structural and
functional unit of any living
thing
Very small, but still alive!
= Controls activities (like a brain)
Removes wastes =
(like intestine/
bladder)
= Transports materials
(like blood)
= Protects (like skin)
= Supports (like muscle)
= Turns food into Energy
(like stomach/intestine)
SENTENCE
Even though the cell could
only be seen using a
microscope, it had all the
structures to be alive.
Tissue
WORDS
DEFINITION
Group of cells
Connective
Epithelial
Muscle
Nervous
Function
A group or layer of
similarly specialized cells
that together perform
certain special functions
Group of cells
SENTENCE
Functions to
hold
together
Functions to
cover and
protect
Functions to
move
Functions to
carry
information
When a group specialized
cells work together, they
form a type of tissue.
Organ
WORDS
DEFINITION
Group of tissue
Function/job
All over body
A differentiated structure
consisting of cells and
tissues that performs
some specific function
Group of tissue
SENTENCE
= Control
activities
Circulation =
Carry blood away
from heart =
Movement =
= Respiration
= Digestion
Remove waste =
Shape & support
=
Absorption =
= Carry blood to
heart
= Excretion
Each organ in the human
body performs an
important function to keep
the person healthy.
Organ System
WORDS
DEFINITION
Group of organs
Major function
Works together
A group of organs that
work together to perform a
vital function in the body
Group of organs
SENTENCE
While each organ system
has a specific job, they all
must work together in order
to keep the person alive.
Organism
WORDS
DEFINITION
Whole person
Individual
Many organ systems
An individual that carries
on the activities of life by
means of multiple organ
systems
Group of organ systems
SENTENCE
All of Johnny’s organ
systems work together to
make him a complete living
organism!
Body Organization
Cell
WORDS
DEFINITION
Small to Large
Organization
The hierarchical
organization of multicellular organisms from
cells to tissues to organs
to systems to organisms
SENTENCE
Organ
Tissue
Organism
Organ
System
Human’s body organization
starts with very small cells
that make tissue that make
organs that work together
to make systems to form
the whole organism.