1. CELL PARTS
IN THIS PRESENTATION,
STUDENTS WILL LEARN
ABOUT:
CELL ORGANELLES
CELL MEMBRANE
ANIMAL AND PLANT
CELLS
2. The Nucleus
The nucleus is the
center of the cell,
kids! It acts as the
‘control room.’ It
contains the DNA
that controls all of
the cell’s functions.
The nucleus has a
membrane with
pores, so that
This is a nucleus, kids! things can pass in
and out of the
nucleus!
3. Endoplasmic
Reticulum
The endoplasmic reticulum
(ER) is attached to the
nucleus. It is an extensive
membrane network divided
into two categories:
Smooth ER
Rough ER
4. ROUGH
ER
The rough endoplasmic
reticulum is ‘The
Highway of the Cell.’
Certain cellular
materials move down
the Rough ER, until
they are ready for their
specific functions.
The rough ER got its name
from the ‘bumps’ created by
the ribosomes attached to it.
JOKE TIME!
What did the dog say to the cell? ROUGH…ER
5. Smooth ER
Characteristics :
•Does not have r ibosomes attached to it, and
that’s why it’s called the ‘smooth ER!
•Functions ar e not r elated to finalizing
pr oteins
6. GOLGI APPARATUS
The golgi apparatus is
one of the coolest
organelles ever! It
picks up the stuff that
leaves the ER, and
changes it even further.
Now the cellular
material is ready for the
cell.
7. Ribosomes
The ribosome is very
important to life. It
is the only organelle
that is shared by
ALL kinds of cells.
They are the site of
the creation of
proteins; this is
where amino acids
gather into long
protein chains.
8. Mitochondria
The mitochondrion of a cell is the ‘power house.’ this is where
all of the cell’s energy—ATP-- is generated! Some scientists
believe that, billions of years ago, mitochondria were a separate
organism. They even have their own DNA!!!!!!!!!!
9. Lysosomes
Lysosomes are very
important organelles as
well. They are crucial
to the digestion of
cellular ‘food.’ They are
sacs filled with enzymes
that break down stuff!
They even help some
cells kill themselves!!!!
10. The Cellular
Membrane
The cell membrane is probably the most complex part of
the cell. It is a very intricate and ever-changing ‘fluid
mosaic’ of phospholipids, proteins, and other molecules.
Sit back and enjoy the ride!
11. The cell membrane is called ‘the fluid mosaic
model’ because its components can move
around. It consists of 2 layers of
phospholipids with embedded proteins for
transport of stuff—but we’ll get to that in a
12. Animal and Plant cells: A
comparison
This is an animal
cell. It differs from
a plant cell, because
it has no cell wall
and no chloroplasts.
It also has cilia for
movement. Notice
there is no large
central
vacuole…..hmmmm
……..
13. Animal and Plant cells: A
comparison
This is a plant
cell. Notice the
thick cell wall—
this is what gives
plants their
rigidity. It also
has a large
central vacuole,
for storage, kids!
We’ll get into
those a little
later….
15. Chloroplasts!!!
Because plants need energy
too, they have to use the
sun to make the
carbohydrate that they
need. So, they use
chloroplasts!
Basically, sunlight hits a
green pigment called
Chlorophyll contained in the
thylakoids. They sunlight
triggers a reaction that
results in the production of
Glucose!
16. Vacuoles
Plants have large storage spaces
called vacuoles inside their cells.
They take up most of the space in the
cell, and they fill with water. A
happy plant has cells with filled
vacuoles. This is known as a turgid
state.
