Download Cells...smallest unit of an organism capable of life.

March 15, 2017
Cells...smallest unit
of an organism
capable of life.
Red blood cell - animal
Cheek cell - animal
And each adult human
has about 100 Trillion cells in them!
March 15, 2017
Unicellular
So what does unicellular mean? Unicellular means
any life form that consists of just a single cell. There
are many types of unicellular organisms some
include...
Algae
Bacteria
Amoeba
(eating a paramecium)
Protist
Unicellular organisms are so small that you need a
microscope to see them. Unicellular organisms can
also survive by themselves because they can perform
all necessary functions such as eating (obtaining
energy), breathing, growing, removing waste,
reproducing, and moving within the one cell.
March 15, 2017
Multicellular
So what does multicellular mean? Multicellular means
having or consisting of many cells or more than one
cell to perform all vital functions. There are many
types of multicellular organisms including...
Animals
Humans
Plants
Multicellular organisms composed of many cells,
which are specialized and independent. Multicellular
organisms can not survive by themselves. Multicellular
organisms use a division of labor to survive. Which
means different cells preform different functions.
For example, the cells that make up your heart work
together to pump blood through the body. In a
multicellular organism each cell is dependent of
each other in order to perform all necessary
functions.
March 15, 2017
So whats the difference between
Unicellular and Multicellular?
Unicellular
Multicellular
Consists of one Consists of more
cell
than one cell
Protist, Algae,
Plants, animals,
Amoeba, Bacteria humans
Seen under a
microscope
Each cell is
specialized (has
only one
function)
Can preform all
Seen under a
Uses a division
functions in one
microscope
of labor
cell
Cells are
dependent on
each other to
survive.
March 15, 2017
So what are the similarities between
Unicellular and Multicellular?
Unicellular
Multicellular
Both need nutrients and Food to
survive
Both can remove waste