Download Prokaryotic vs. Eukaryotic Cells

Bell Ringer – Friday
1) Explain how the cell membrane
is like a gatekeeper.
2) Which one of the following items
is not made of cells: dog,
person, tree, water? How do
you know??
Straight from the MCT2
3. Which of these describes two cell structures
with similar functions?
A. A chloroplast and a vacuole are alike because
both store energy.
B. A chloroplast and a mitochondrion are alike
because both make energy from sugar.
C. A cell wall and a cytoskeleton are alike
because both provide rigidity and support for
the cell.
D. A cell wall and a cell membrane are alike
because both surround the cell and provide the
cell with protection.
4. How do the functions of the nucleus differ from
those of the cell membrane?
A. The nucleus converts food energy, while the
cell membrane stores minerals and wastes.
B. The nucleus controls the activities of the cell,
while the cell membrane controls what enters
and exits the cell.
C. The nucleus provides support, while the cell
membrane converts carbon dioxide and water
into food.
D. The nucleus stores food and water, while the
cell membrane stores chemicals used by the
cell for photosynthesis.
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Prokaryotes vs.
Eukaryotes
August 24, 2012
By the end of the day..
• Achievers on the ROAD to
college will be able to compare
prokaryotic and eukaryotic
cells.
• Achievers on the ROAD to
college will be able to answer
our question of the day
QUESTION OF THE DAY…
• Which of the
organelles that we
talked about last week
(cell wall, cell
membrane,
cytoplasm, nucleus)
would make it harder
to kill a cell?
HYPOTHESIS TIME
• Which of the organelles that
we talked about last week
(cell wall, cell membrane,
cytoplasm, nucleus) would
make it harder to kill a cell?
- What organelles help the
cell survive??
Let’s Review!!!
• All living things are made of _______
• ALL types of cells have a ______
______________.
• ONLY plant cells have a _________
_________
• The ______________ is like the brain of
the cell
• _______________ keeps everything in
the cell in place.
Let’s Review!!!
• All living things are made of cells
• ALL types of cells have a _______
____________.
• ONLY plant cells have a _________
_________
• The ______________ is like the brain of
the cell
• _______________ keeps everything in
the cell in place.
Let’s Review!!!
• All living things are made of cells
• ALL types of cells have a cell
membrane.
• ONLY plant cells have a _________
_________
• The ______________ is like the brain of
the cell
• _______________ keeps everything in
the cell in place.
Let’s Review!!!
• All living things are made of cells
• ALL types of cells have a cell
membrane.
• ONLY plant cells have a cell wall.
• The ______________ is like the brain of
the cell
• _______________ keeps everything in
the cell in place.
Let’s Review!!!
• All living things are made of cells
• ALL types of cells have a cell
membrane.
• ONLY plant cells have a cell wall.
• The nucleus is like the brain of the cell
• _______________ keeps everything in
the cell in place.
Let’s Review!!!
• All living things are made of cells
• ALL types of cells have a cell
membrane.
• ONLY plant cells have a cell wall.
• The nucleus is like the brain of the cell
• Cytoplasm keeps everything in the cell
in place.
There are 2 types of cells
EUKARYOTE
PROKARYOTE
Huge Size Difference!
Prokaryotic
Cells are
TINY!
Eukaryotic Cells are BIGGER!
Two basic cell types:
Prokaryotic & Eukayotic
Prokaryotic cells
• Lack membrane bound
(1)organelles
–What’s an organelle?
–What’s a membrane?
Which type
of cell is
more
complex?
Artist’s
illustration of a
Prokaryote and
Eukaryote Cell
Prokaryotic cells
• Able to grow and
multiply (2)quickly
–Because they’re smaller!
Prokaryotic cells
• No nucleus – DNA is
(3) free in the
cytoplasm
• Have cell membrane
and cytoplasm
- All prokaryotic organisms are
(4)UNICELLULAR
Examples include: bacteria and
cyanobacteria (blue-green
algae).
Actual Prokaryotic Cells
Which organelles is the Prokaryote cell
missing?
Eukaryotic cells:
• May have evolved from
Prokaryotic cells
• Have a (5)nucleus that holds
the (6)DNA in one place
Eukaryotic cells:
•Have (7) mitochondria
•Also have cell
membrane & cytoplasm
Eukaryotic Cells
• This includes protists, fungi,
plants, and animals, which
include (8) humans.
Protists
Fungi
Eukaryotic Cells
Actual Eukaryotic Cells
BOTTOM LINE:
(9)“PRO” MEANS
NO, “EU” MEANS
NEU..
(Prokaryotes have NO
nucleus...eukaryotes have a
nucleus)
Have you ever used Purell?
How does it kill bacteria but
not kill our skin cells?!
Thinking Back
• Why would a prokaryotic cell
NOT want to have a nucleus?
• Why would a eukaryotic cell
WANT to have a nucleus?
Thinking Back
• That extra layer (the nucleus)
helps to protect our DNA from
things like Purell or antibiotics
but also makes replicating take
more time
QUESTION OF THE DAY…
• Which of the
organelles that we
talked about last week
(cell wall, cell
membrane,
cytoplasm, nucleus)
would make it harder
to kill a cell?
Would this be a prokaryotic or
eukaryotic cell??
ROAD check
Humans are a _________
organism.
A. Prokaryotic
B. Eukaryotic
ROAD check
Since I know this
is a ___________
cell, these are
the types of
things I can find
in this cell:
ROAD check
Where
would I find
the DNA in
this cell?
ROAD check
Where would I
find the DNA in
this cell?
This cell would
take
____________
than a
prokaryotic cell
to replicate
A.Shorter
B.Longer
ROAD check
Which of
these cells
do SUPER
scientists
(like you
all!!) think
came first??
ROAD check
Name me ONE
thing this type
of cell does not
have.
ROAD check
WITHOUT LOOKING AT YOUR
NOTES, what is that awesome
rhyme we can use to help us
remember our cell types??
ROAD check
Name me
ONE thing
thing this cell
has that the
other type of
cell is
missing..
Independent Practice!
-Take out a blank sheet of paper and put
the proper heading on it.
Your Name
Mr. Vo
8/24/11
Independent Practice
INDEPENDENT PRACTICE
Create a Venn Diagram comparing and
contrasting prokaryotic and eukaryotic
cells.
THINGS
THINGS ONLY
BOTH CELL
PROKARYOTES
TYPES
HAVE
SHARE
THINGS ONLY
EUKARYOTES
HAVE
EXIT TICKET - Friday
You are trying to describe
th
a eukaryotic cell to your 4
grade sister.
Write two sentences
describing a eukaryotic
cell.