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Introduction to Cells
Day 3
Cell Organelles
Animal vs. Plant Cells
Bell Ringer: Prokaryotes vs. Eukaryotes
5 MIN
WORD BANK
Big
Complex
No nucleus (naked DNA)
Simple
Nucleus
DNA
Today’s Agenda
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Bell Ringer (5 minutes)
Introduction (10 minutes)
Notebook Input (20 minutes)
Notebook Output (5 minutes)
Group Activity (30 minutes)
Independent Practice (15 minutes)
Exit Quiz (10 minutes)
Why continue to learn about cells!??
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We can do a LOT…
Protect our cells to prevent infection and other
harmful effects
Observe cells to diagnose disease
Treat cells to heal illnesses
Stop harming cells though our choices and actions
STOP ZIKA!??? – scientists need to learn about cells
in both humans and mosquitoes and the single
celled organism that causes Zika.
"Cell City"
Essential Question
Why do plant cells and animal cells contain
different organelles?
What are we learning today?
Cell organelles in plant and animal cells
Notebook input
• Today, you write what is in BLUE
• The title of your notes is:
Cell Organelles
Review: The Classification of Cells
 There are two types of cells:
Review: Prokaryotes vs. Eukaryotes
 Eukaryotes are/have:
 Prokaryotes are/have:
– Big
– Small
– More Complex
– Less Complex
– The nucleus houses the
cell's DNA, keeps things
organized
– No nucleus around the
DNA
•No need for a special
container because the
cell is so small!!!
PARTS OF CELLS
• Organelles: Small,
specialized
structures inside
cells such as the
nucleus or
mitochondria.
• All living things are
made up of cells,
but not all cells are
the same.
Organelles
Organelle
Prokaryote Plant or
Or
Animal
Eukaryote
Cell
Function
Cell Wall
Both
Plant
Protects plant and some prokaryotic
cells; supports cell.
Cell
Membrane/Plasma
Membrane
Both
Both
Controls what enters and exits a cell.
Both
Both
Jelly-like substance that holds the
organelles outside of the nucleus.
Eukaryote
Both
Holds the DNA (genetic information) of
cells –Surrounded by a nuclear
membrane with pores
Cytoplasm
Nucleus
Organelles
Organelle
Prokaryote Plant or
Or
Animal
Eukaryote
Cell
Function
Nuclear Membrane
Eukaryote
Both
Surrounds the genetic material and
nucleolus
Nucleolus
Eukaryote
Both
Round body located inside of the
nucleus.
Chromatin
Both
Both
The material that chromosomes are
made of (Protein + genetic material)
Eukaryote
Both
Cellular respiration occurs here to
produce ATP  this is the power house
of the cell.
Mitochondria
Organelles
Organelle
Prokaryote Plant or
Or
Animal
Eukaryote
Cell
Function
Ribosomes
Both
Both
Where proteins are made
Endoplasmic
Reticulum
(ER)
Eukaryote
Both
“highway of the cell” and site of protein
and lipid synthesis. Highly folded to
increase surface area available to make
more proteins and lipids
Golgi apparatus
Eukaryote
Both
Sorts and packages cellular products
like the post office of the cell. Pieces
of the Golgi are pinched off to form
vesicles that deliver the cellular products
Organelles
Organelle
Prokaryote Plant or
Or
Animal
Eukaryote
Cell
Function
Lysosomes
Eukaryote
Both
Breaks down waste products
Vacuoles
Eukaryote
Both
Chloroplast
Eukaryote
Plant
Stores water and waste, supports plant
cell by exerting pressure on the cell wall.
Plants have a large central vacuole.
Photosynthesis occurs here in plant cells.
Microtubules
Eukaryote
Both
Cilia/Flagella
Eukaryote
Tube-shaped protein structures that help
cells maintain their shape
Animal Located outside of the cell. Flagella helps
the cell move around. Cilia helps move
substances over or around the cell.
Nucleus
Ribosomes
8. ER
Golgi apparatus
lysosome
This is in an animal cell. The
vacuoles are small and don’t take
up much space
vacuole
This is in a plant cell. It
has one large central
vacuole that stores
water the plant needs
to survive. It is LARGE
and takes up a lot of
space
cell membrane/plasma
membrane
Large Central Vacuole
•Used to store water and other materials
Vacuole
Chloroplasts
Review: Cell Wall
•Rigid outer layer
•Provides structure and support for the cell
•Protects the cell membrane
Cell Wall
Check for understanding
• What are the two different types of eukaryotic
cells?
Plant and animal
• Nucleus, vacuole, cell wall, cytoskeleton:
Which of these is found in plants but not
animal cells? cell wall
• How is the vacuole different in plant cells?
much larger
holds water for plant
Check for understanding
• Mitochondria or chloroplast: which is only
found in plant cells?
chloroplast - make food from sunlight
(mitochondria are in BOTH animal and
plant cells)
Check for understanding
• What are THREE differences between a plant
and animal cell?
1. Plants have chloroplast; animals do not
2. Plants have cell walls; animals do not
3. Plants have a large central water vacuole to
store water (animals vacuoles are small)
Cell Analogy ACTIVITY
An analogy is a way of
explaining something by
comparing it with
something else.
 The figure to the right is an
analogy of the inner
workings of a cell in which
the artist compares the
cell to a factory.

Cell city
Analogy
Things get built at
a construction site
 Where in the cell
things get built or
put together?
 Ribosomes

–
Construction sites and
ribosomes built new
structures
Cell city
Analogy
Large tanks in
the city store water
 Where in the cell
things get stored?
 Vacuoles

–
Tanks and vacuoles store
food and water
Making a Cell Analogy Activity
Complete the Making the Cell
Analogy worksheet by
 matching the parts of the
city with the name of the
organelle that functions
most like it
 completing the table for
either your house or a
factory analogy
 Making your own analogy
Notebook Output 5 Min
Choose one question and answer
Do you think that eukaryotes could have evolved without prokaryotes?
Explain.
How have organelles enabled eukaryotic cells to become successful?
By comparing a bee's body mass to its wing span, it has been calculated
that a bee should not be able to fly. Cell biologists have since found that
the muscles which control the wings of the bee have a huge number of
mitochondria. Explain why this discovery may help explain why bees are
able to fly.
Although cells were first discovered during the 1660s, how would you
explain the fact that most of our knowledge about cell structure and
function has occurred within the last 50 years?
Cells of the stomach lining have large numbers of ribosomes and Golgi
apparatuses. Explain why?
Independent Practice 15 Min
Exit ticket 10 MIN
• Put all materials away/pack up!
Home Learning
Complete a Frayer Model of the following
vocabulary words:
1. Ribosomes
2. Mitochondria
3. Chloroplast
4. Vacuole
5. Cell membrane/Plasma membrane