Transcript Journey to the center of the cell!

Journey to the center of the cell!
Told as in the Wizard of Oz
A explanation of the cell organelles.
Use your paper to keep up and write
down their function(s).
Page 1: Once Upon a time…
• There was a young girl
named Samantha. She
lived in a little town called
Chapel Hill.
• She lived there with her
little dog Auggie.
• One day there was a big
tornado and she and her
dog got whisked into the
air and transported to a
strange new world!
Page 2: Where am I?
• Samantha awoke in a crazy new world and said,
“where am I?”
• She felt that she was stuck in some gooey liquid
and saw that her dog was too although Auggie
looked very different than before.
• Then Auggie spoke and she said, “this goo is likely
cytoplasm, the liquid gel inside of all eukaryotic
cells. It acts as a cushion and support for the
organelles!”
• She continued, “kind of like the packing popcorn
in shipping boxes.”
Page 3: Who am I?
What
happened
to me?
Cool! I
mean
“Woof!”
Hi
there!
• Shocked that her dog spoke,
Sam looked and saw that she
was made of stacks and green.
• “You’re one of us,” a mysterious
voice said. “You’re a
chloroplast! Chloroplasts trap
light energy to be used by plant
cells.”
• “Kind of like how solar panels
collect the sun energy to be
used later.” The voice
continued.
• “Chloroplasts are only found in
plant cells, Auggie exclaimed,
“so that helps in our mystery!”
Page 4: What happened to
my Dog!?
• Samantha was a bit
concerned about being
turned into a chloroplast, but
she was a bit more curious
about her dog. Knowing now
her dog could talk, she asked
her, “Auggie, what the
biscuits happened to you?”
• “I believe I am a Ribosome. I
help read DNA and make it
into protein for the cell.
We’re kind of like the
workers of the cell; the cell’s
best friend!”
Ribosome is
my name
and Protein
is my game!
Page 5: Okay, now let’s get out of here!
It’s like our
own
skeletons!
• As Sam and Auggie swam
through the cytoplasm, they
headed past all of these tubes
and filaments that kept
getting in their way.
• “What is all of this stuff
Auggie?” Sam asked.
• “This is likely parts of the
cytoskeleton that acts to help
support the cell. Kind of like
the concrete blocks and
structural supports .” Auggie
replied.
Page 6: Leaving is not so easy!
• Samantha and Auggie reached the
end of the cell and found a security
guard at the cell boundary.
• “Who are you?” asked Samantha.
• “I’m the plasma membrane and I act
as the bouncer for the cell. I say who
goes in and who goes out.”
• He continued, “Since this is a plant
cell, there is also another layer
outside of the membrane called the
cell wall which acts like a city wall
around a city. There are not present
in animal cells.”
• “You two, my friends, are not
leaving.” The membrane added.
• “If we want to leave, we’re going to
have to see the wizard or the nucleus
of the cell!” Said Auggie.
Come on
Sam, let’s go
see the
wizard.
I had a
feeling that
this wasn’t
going to be
easy.
Page 7: A new friend who needs some
I just need
heart.
the heart to
start making
energy again!
Let’s
keep
going!
I wonder
who else
we will
meet?
• On the way we bump into an
organelle that seemed
unhappy.
• “Hi, I’m a mitochrondrion, I
make energy for the cell, kind
of like the power plant for a
factory.”
• “Lately I haven’t had the
heart to do it anymore and I
don’t know what to do!”
• Auggie added, “I know! Let’s
all go see the Nucleus and
he’ll tell us what to do!”
• The three then set off looking
for the Nucleus.
Page 8: A new friend who needs a brain.
While traveling with their new friend, they
passed by another organelle with obvious
issues.
“And who are you that is so blue?” Auggie
asked.
“I’m the Golgi Apparatus, I package proteins
from Ribosomes and send them out the rest of
the cell, kind of like the post office does for
letters in a town.”
“What are those weird little things coming off
of you?” asked Samantha.
“Those are called Vesicles. This is the transport
method I move out processed proteins. They
are like the letters from the post office.
“However, lately I’ve forgotten how to package
all these proteins so I haven’t been doing my
job and I don’t know what to do!” He
exclaimed.
Samantha told him, “Well, we’re all off to see
the Nucleus to get his guidance, do you want
to come?”
“Sure!” The Golgi Apparatus exclaimed and
happily joined the gang.
I need a
brain to
figure out
what to do!
How do
you
do?
Oh dear,
who
else?
Cool!
Another
friend!
Page 9: A new friend who needs some
I need the
courage!
courage to
do my job
again!
Alright, it’s
getting
crowded
here, let’s
go!
•
We’re going
to see the
nucleus! I
bet he can
help us!
•
•
•
•
•
•
•
As the foursome moved towards the
nucleus, they encountered a dangerous
foe!
“Who are you?” Auggie timidly asked.
“I’m the … uh, the Lysosome.” It replied
fearfully.
“Oh, he’s not scary, just scared!”
exclaimed Sam.
“I used to be scary,” said the Lysosome.
“I’m filled with digestive enzymes and my
job is to digest and eat old cell parts and
microbes that enter the cell. I’m kind of
like the garbage disposal of the cell.
Everyone fears me, but lately I haven’t had
the courage to go out and eat anything!”
“Well,” Auggie started and then was cut
off by Samantha.
“Blah, blah, you wanna see the Nucleus
and try to solve your problem?” Sam
interjected.
“Sure!” the Lysosome replied and off they
went.
Page 10: Follow the Yellow Brick ER
As our heroes went further to the nucleus,
they found a road that led straight to it!
“What is this strange place?” asked Sam.
Just then, Auggie perked up, starting barking
and ran straight to it.
“Oh, I get it,” said the mitochrondrion.
“This is the Endoplasmic Reticulum or ER. It
is the site of all chemical reactions. It is kind
of like the assembly line for the cell. The
Smooth ER doesn’t have any ribosomes, but
the Rough ER contains most of the
Ribosomes where they make protein.
Maybe that’s what Auggie went to go see,
the other Ribosomes.”
“WAIT! Auggie, come back!” Shouted Sam.
It was too late, Auggie had ran ahead on the
ER right to the exterior of the Nucleus.
Follow
that
dog!
Page 11: Get Auggie Back!
We can sneak in
through one of
those nuclear
pores!
• The group chased after Auggie up
until they reached the nuclear
membrane where Auggie (because
she is a small ribosome) jumped in
through one of the small holes.
• “We have to sneak in, we have to get
Auggie back!” Sam cried.
• “The Nuclear membrane is just a
membrane that separates the DNA
from the rest of the cell so it doesn’t
get damaged. It is kind of like a plastic
holder around a cell phone or plastic
shrink wrap! So it won’t be so bad to
go through, we’ll just have to push
through one at a time!” Said the
Lysosome.
• The group snuck into the nucleus and
continued their search for Auggie and
the Wizard inside the Nucleus.
Page 12: Inside the Nucleus…
• “Auggie, Auggie, come here
girl! Where are you?” Called
Samantha.
• “There she is!” said the Golgi
Apparatus. “Over there with
the Nucleolus!”
• “What’s a nucleolus?” asked
Samantha.
• “The Nucleolus is the organelle
inside the nucleus that makes
Ribosomes. It is kind of like
the Boss of all the Ribosomes.”
• Sure enough, Auggie was
wagging her tail next to the
Nucleolus which was giving her
some treats.
Treats are
so
awesome!
You are such a
bad dog! We
were so
worried!
Page 13: Auggie & the Nucleolus
We’ve got to
be getting
close to the
Wizard!
Yeah!
Cool!
About
time!
Ugh, I’m
not feeling
so good…
• “Auggie, there you are! You had us
so worried!” exclaimed Samantha.
• “Sorry,” Auggie said, “I knew if I
found the Nucleous, then the
wizard would be close by!”
• “Wait, so exactly who is the wizard
of the cell?” asked Sam.
• “That would be the DNA of the
cell,” the Mitochondria replied.
• “The DNA is the genetic code that
makes all the organelles and
enzymes inside the cell. It acts as
the brain of the cell, directing all of
the cell activities. The DNA lives
inside of the Nucleus. All Plant
and Animal cells have DNA in their
nucleus.”
• “Even prokaryotic cells have DNA.”
added the Lysosome.
Page 14: Meeting the “Wizard.”
• Finally, the group with Auggie back,
reached the DNA at the center of the
Nucleus.
• Timidly, they approached the DNA
wizard and each organelle with the
group asked the wizard for what they
needed.
– The Mitochondria went first and got the
heart to make energy again.
– The Golgi Apparatus went next and got
the brain he needed to package and sort
proteins again.
– The Lysosome went last and got the
courage to hunt down old organelles ,
bacteria and viruses to digest again.
– Lastly, Samantha and Auggie went
before the DNA to ask their question
about why they were inside the cell.
I’ve found
my heart
to make
energy!
I’ve found
my brain to
package
proteins!
I’ve found my
courage to
digest things,
but I still don’t
feel good…
Page 15: The Test!
• “Um, all knowing Wizard, I mean DNA,
sir…” Samantha stammered, “could
you help us find our way back home?”
she pleaded.
• “DEPENDS,” boomed the DNA. “YOU
MUST PASS MY TEST ON CELL
ORGANELLES TO SEE IF YOU ARE
WORTHY TO GO TO THE VACUOLE
AND RETURN TO YOUR NORMAL
LIVES!”
• Wait, how can we find the vacuole?”
Samantha asked.
• The mitochrondrion replied, “The
vacuole is like a storage area of the
cell for water or food items. It is kind
of like a giant storage unit like a trunk
or closet. It’s huge in plant cells, you
can’t miss it. In animal cells there are
more of them, but not as large.”
• “Okay,” said Auggie. “Let’s ace this
test!”
Your Turn!
Identify the Letters to the Organelles!
The group put all their heads together
and came up with a list of answers to
DNA’s test.
Luckily, since Samantha and Auggie
went around and made friends with all
the organelles, it was an easy job!
Help the group by identifying the
organelles in your notes!
Use your chart to help you identify the
unknown organelles!
Page 16: Answers to DNA’s Test
• The group put all their
heads together and
came up with a List of
Answers.
• Double check with your
list in your notes and
see how you did!
• Correct any answers
you did not get the first
time!
•
•
•
•
•
•
•
•
•
•
•
•
•
•
•
•
•
A – Nucleus
B – DNA
C – Nucleolus
D – Nuclear Membrane
E – Rough ER
F – Smooth ER
G – Vacuole
H – Cytoskeleton
I – Chloroplast
J – Cell Wall
K – Plasma Membrane
L – Mitochondrion
M – Vesicle
N – Golgi Apparatus
O – Lysosome
P – Cytoplasm
Q - Ribosome
Page 17: One Last Question!?
• “BEFORE I CAN LET YOU
GO, I WANT TO SEE IF
YOU HAVE TRUE
KNOWLEDGE OF
ORGANELLES.” The DNA
demanded.
• “WHICH ORGANELLE IS
NOT FOUND IN PLANT
CELLS, BUT ONLY IN
ANIMAL CELLS THAT
HELPS IN CELL
DIVISION?”
Page 18: The last question… answered!
• The group was dumbfounded, all
of them had spent their entire
lives inside of a plant cell and had
no idea what was the unique
organelle of an animal cell.
• The Lysosome got so nervous, he
vomited on the floor all of the
contents in his gut!
• Then, up popped an undigested
bacterium that must have escaped
death due to the previous lack of
courage from the lysosome.
• “I know the answer you seek!”
cried the bacterium. “It’s a
Centriole! Centrioles are only
found in animal cells and act as
fishing poles to separate the
chromosomes in cell division!”
Ugh, it
was
getting
stuffy in
there!
Eww!
Oh,
excuse
me!
Hmm.. Hey
are you
going to
eat that?
Page 19: Onto the Vacuole and Home!
There’s no
place like
Chapel Hill,
there’s no place
like Chapel Hill!
Onto the
vacuole!
• “YES, THAT IS CORRECT.” Stated
the DNA.
• “NOW IF YOU WISH TO GO
HOME, FIND THE CENTRAL
VACUOLE OF THE CELL AND SAY
THE MAGIC WORDS,
– “THERE’S NO PLACE LIKE CHAPEL
HILL!”
• “What are we waiting for?”
exclaimed Samantha. “Come on
Auggie, let’s go home!”
• And with that, the group went to
the Vacuole!
Page 20: Home Sweet Home
The group rushed to the
vacuole and said their tearful
goodbyes. Samantha had
learned a lot from her
organelle friends and she
would never forget them.
Sam and Auggie entered into
the vacuole, said the magic
words and then felt like they
were in a terrible storm!
We sure
are going
to miss you
guys!
Thanks Samantha
and Auggie! We
couldn’t have done
it with you!
Epilogue: You think funny things when
you’ve had a concussion.
I bet she
doesn’t
suspect a
thing!
• “Where am I? Who am I? Am I
still a chloroplast? Is Auggie a
talking Ribosome?” Samantha
said with a jolt upright in her
bed.
• “No, no Samantha,” her mother
told her. “A tree branch hit you
on the head during the storm
and we found you when Auggie
was barking and licking your
face. It was all just a dream.”
• Her mother left the room and
Auggie jumped on her bed and
said, “It was all a dream so just
go back to sleep.”
• THE END!