What are cells?
Organism
 An organism is made
of organ systems.
 Organ systems are
made up of organs
 Organs are made up of
tissues
 Tissues are made up
of CELLS!
Brainpop: Cells & Cell Structures
Organ System
Organ
Tissue
Cells!!!!
The Cell Theory
1. All living things are made of cells.
2. Cells are the basic units of structure
and function in living things.
3. Living cells come only from other
living cells.
Cells
 Cells are made up of organelles.
 Organelles are like tiny organs.
 Each organelle has a job to do (or a
specific function) just like our organs.
 The organelles work together to keep
the cell alive and healthy.
Animal Cell
Plant Cell
What are the functions
of the organelles?
• Read each slide.
• Take notes by filling in blanks on your
sheet.
• AFTER ALL NOTES ARE DONE, get
your sheet of picture clues to cut out and
glue in the appropriate box on your sheet.
Cell Wall
• Plant cells only
• Gives plants their
shape, structure,
support, and protection
• Surrounds the cell
membrane
• Allows H2O, O2, and CO2,
to pass in and out of the
cell
Cell Membrane
• A continuous, almost
invisible structure
surrounding the cell
• Supports & protects
the cell
• Controls movement
of materials in and
out of the cell
Chloroplasts
• Plant cells only
• Uses energy from the sun to
make food for the plant
through photosynthesis
• Where photosynthesis takes
place
• Power generator for the plant
• Give plants their green color
Cytoplasm
• The cell’s environment or
inner space.
• Mostly made of water and
contains organelles
• The jellylike material
outside the cell nucleus.
Mitochondria
• Powerhouse of the
cell. Supplies
energy that the cell
needs.
• Breaks down sugar
molecules into energy
• Need oxygen to make
energy and give off
carbon dioxide as
Nucleus
• The cell’s computer, brain,
or manager. Uses DNA to
control the cell’s activity
• Contains all the information
the cell needs to do specific
jobs, grow, and divide
• Information is stored in
DNA molecules
• Contains the nucleolus which
makes ribosomes
• Determines what proteins
will be made
Lysosomes
• Cell’s recycler. Breaks
down large food and
digests old cell parts.
• Contains enzymes which
break down the proteins
Ribosomes
Protein
• Produces protein which
is the Product of the
cell
• Cells need protein to
survive and grow
Protein
Vacuoles
• Storage bubbles found
in cells.
• Much larger in plant cells.
Store food or nutrients a
cell might need to
survive.
• Store waste products so
the rest of the cell is
protected from
contamination.
Packs
Golgi Bodies
• Packs and carries
proteins in little
bubbles that separate
and float into the
cytoplasm.
• Prepares the proteins
for use or delivery
outside the cell
Endoplasmic Reticulum (E.R.)
• Transportation system of
the cell. Carries
material through the
cell.
• Rough ER has ribosomes
attached to it so the
proteins they make can be
released directly into the
ER for transport
• Smooth ER collects things
and contains them
Nuclear Membrane
• Protects and guards the
nucleus. Allows materials
to pass in and out.
• Keeps the DNA inside the
nucleus
• Allows other materials to
pass in and out of the
nucleus
THE DIFFERENCE BETWEEN
ANIMAL & PLANT CELLS
Can you remember the
function of each?
Protein
Cut out the symbols and glue them
next to the correct cell part.
Organelles
Cell Wall
Cell Membrane
Chloroplasts
Cytoplasm
Mitochondria
Nucleus
Lysosome
Ribosome
Vacuole
Golgi Body
Endoplasmic
Reticulum
Nuclear
Membrane
Cell Functions
Plant
Animal
Picture