Transcript Cell Theory - Westhampton Beach Elementary School

Cell Theory
Cilia
Cell Theory
1.
2.
3.
All organisms are
made of one or
more cells.
A cell is the
smallest unit of
life, that carries
out all 6 life
processes.
All cells come from
other cells.
Cilia
Wacky History of Cell
Theory Video - Link
Cell Structures and Function
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Cells contain specialized structures that carry
out the 6 life processes.
These structures are called organelles.
Most cells have the same basic organelles:
cell membrane
cytoplasm
nucleus
nuclear envelope (membrane)
Two general types of cells:
animal cell
plant cell
How are cells like an egg?
Analogy:
shell = cell membrane
egg white = cytoplasm
yolk = nucleus
yolk sac = nuclear envelope
Animal Cell
Plant Cell
Organelles – Parts of the Cell
Organelle/Sketch
Plasma membrane
Cytoplasm
- clear fluid
Plant Animal Function (Job)
✔
✔ controls what enters
✔
✔ jelly-like fluid that
and leaves the cell;
protection; shape
fills the cell and
supports the
organelles; shape
Organelles – Parts of the Cell
Organelle/Sketch
Plant Animal Function (Job)
Nucleus
✔
✔ controls the cell like
Nuclear envelope
(membrane)
✔
✔
a brain; contains
chromosomes (DNA)
controls what enters
and leaves the
nucleus
Organelles – Parts of the Cell
Organelle/Sketch
Plant Animal Function (Job)
Mitochondria
✔
✔ changes chemicals
Ribosomes
✔
✔ makes proteins for
into energy;
“powerhouse” of the
cell
the cell
Organelles – Parts of the Cell
Organelle/Sketch
Plant Animal Function (Job)
Endoplasmic
reticulum
✔
✔
tube-like transport
system; “subway” of
the cell; smooth and
rough
Golgi apparatus
✔
✔
packages and sends
out proteins; “UPS”
of the cell
Organelles – Parts of the Cell
Organelle/Sketch
Plant Animal Function (Job)
Vacuole
✔
✔ stores water, food,
Cell wall
✔
No
and waste for the
cell; much larger in
plant cells
surrounds the cell
membrane of the
plant cell; provides
support and shape
Organelles – Parts of the Cell
Organelle/Sketch
Plant Animal Function (Job)
Chloroplast
✔
No turns light energy
Lysosome
✔
✔ stores digestive
into chemical energy
during the process of
photosynthesis
enzymes for the cell
to break down food
Organelles – Parts of the Cell
Organelle/Sketch
Plant Animal Function (Job)
Centrioles
No
✔ aides in cell division
in animal cells
(mitosis)
Now you can Cell-A-Brate!