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Transcript
What Do All
Living Things
Have In
Common?
They are
all made
of cells!!
From the smallest
organism, or living
thing, to the
largest, we are all
made of cells.
What is a Cell?
A cell is the smallest
unit that is capable
of performing life
functions.
What is a Cell?
Since the cell is the
smallest unit of living
matter, the processes
of life must be carried
out by the cells.
Important Information
About Cells
• All living things are made up of
cells.
• Cells are the smallest working
units of all living things.
• All cells come from preexisting
cells through cell division.
What Functions Do Cells
Perform?
• Some cells make food.
• Some cells release energy for other cells to
use.
• Some cells transport materials.
• Some cells carry oxygen throughout the
human body.
• Some cells help fight against infection.
• Cells do MNAY jobs!!
What Are Living Things Made Of?
• Some organisms are made of just
one cell.
• Other organisms are made of many
similar cells that benefit from
cooperating.
All Organisms are either:
Unicellularconsist of a single(one) cell and perform all
life processes within a single cell
Or
Multicellularconsist of more than one cell (many) and
have different cells that perform special
functions in the organism
Examples of Cells
Amoeba Proteus
Plant Stem
Bacteria
Red Blood Cell
Nerve Cell
• Made of one cell
• The one cell performs all life
functions
• Usually only seen with a
microscope
• Includes amoebas, bacteria and
protozoa
• Made of many cells
• Different cells perform different
functions
• Can be seen by the naked eye
• Includes all plants and animals
So, What’s the Difference?
Unicellular
• Made of one cell
• The one cell performs
all life functions
• Usually only seen with
a microscope
• Bacteria, yeast,
amoebas…
Multicellular
• Made of many cells
• Different cells perform
different functions
• Can be seen by the
naked eye
• Plants, animals…
Levels of Cell Organization
• Cells are the smallest living part of an organism
• Cells that work together with the same job
form tissue
• Tissues of different kids come together to make
an organ
• A group of organs that work together to do a
certain job makes up an organ system
Which Type of Organism Am I?
Which Type of Organism Am I?
Which Type of Organism Am I?
Which Type of Organism Am I?
Which Type of Organism Am I?
Which Type of Organism Am I?
Deep in the Mariana Trench, about seven miles below
the surface, researchers found
huge single celled amoebas, making them not only completely
surprising and amazing,
but also the creatures living at the biggest depth found so far.
Which Type of Organism Am I?
Which Type of Organism Am I?
Click on the following Links to read
more information about cells
• #1Learn more about
the discovery of
cells• Read-”What is the
basic unit of life?”
and “How is life
organized around
cells?”