Transcript The Cell - oteroteacher

OPENER
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Have you ever wondered why flamingos are pink
or orange? You've probably heard it has
something to do with what flamingos eat, but do
you know what exactly it is that produces the
color?
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Flamingos are pink or orange or white depending on what
they eat. Flamingos eat algae and crustaceans that contain
pigments called carotenoids. For the most part, these
pigments are found in the brine shrimp and blue-green
algae that the birds eat. Enzymes in the liver break down
the carotenoids into the pink and orange pigment
molecules deposited in the feathers, bill, and legs of the
flamingos. Flamingos that eat mostly algae are more
deeply colored than birds that eat the small animals that
feed off of algae. Captive flamingos are feed a special diet
that includes prawns (a pigmented crustacean) or additives
such as beta-carotene, otherwise they would be white or
pale pink. Young flamingos have gray plumage that
changes color according to their diet. People eat foods
containing carotenoids, too. Examples include betacarotene in carrots and lycopene in watermelon, but most
people do not eat enough of these compounds to affect their
skin color.
Tuesday Agenda
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Literacy objectives: Writing to take notes and explain one’s
thinking.
Content Objective: TSWBAT compare prokaryotes and
eukaryotes and identify various organelles.
Framework: Cells
Agenda:
1. Collect animal cell labeling/attendance and opener.
2. Cell PPT/cells diamond foldable
3. Closer: cell city and for homework create your own
analogy
4. 3D cell due Friday!!!!!!!!!
THE CELL
The Basic Unit of Life
Magic School Bus Goes Cellular - YouTube
Water
Chemical Formula for water is H2O
Water molecules are held
together by hydrogen bonds
Water is a polar molecule
Polar molecule – molecule with unbalanced charges. Partially
positive end and partially negative end
Nonpolar molecule – molecule with balanced charges
Solutions
Solution – a homogeneous mixture
of two or more substances
Solute – the substance dissolved in
a given solution.
Solvent - a substance that dissolves
another to form a solution
Hydrophobic – repelling, tending not to combine with, or
incapable of dissolving (insoluble) in water.
Hydrophilic - having an affinity for (loving) water; readily
absorbing or dissolving (soluble) in water.
pH
pH is a measure of the acidity or basicity of an aqueous solution.
Water breaks down into H+ and OH-
BASE
ACID
More H+ in
the solution
More OH- in
the solution
Water and pH in Living Organisms
Homeostasis – the body maintaining a constant
internal environment in a changing external environment.
Regulated Conditions
Temperature
Water volume
pH
Glucose concentration
Salt concentration
Internal Organization of the Cell
Prokaryote vs EukaryoteProkaryotic
and eukaryotic cells.flv - YouTube
Cell membrane
Cytoplasm
Prokaryotic Cell
Cell membrane
Cytoplasm
Eukaryotic Cell
Nucleus
Organelles
PROKARYOTIC EXAMPLES
ONLY Bacteria
EUKARYOTIC CELLS
Two Kinds:
Plant and Animal
EUKARYOTIC ANIMAL CELL
Animal Cell Under the Microscope
Cheek Cell
Eukaryotic Plant Cell
Section 7-2
Plant Cell Under the Microscope
Elodea Cell
INTERNAL ORGANIZATION
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Eukaryotic cells
contain organelles.
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Specialized
structures within the
cell that perform
specified functions
for the cell.
THURSDAY OPENER
Create
a Venn
Diagram
comparing
prokaryotes
and
eukaryotes
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Prokaryotes
Eukaryotes
BOTH
THURSDAY: CELL ORGANELLES AND
FUNCTIONS
Literacy objectives:
 Writing to take notes
and explain one’s
thinking
 Content objective:
 TSWBAT understand
how the cell organelles
function
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Agenda:
 Opener
 Attendance
 3D cells are DUE
TOMORROW!!!!!!!
 Cell organelle ppt
CREATE TRADING
CARDS
 VENN
DIAGRAMS/organelles
function worksheet for
homework
 CLOSER: word splash
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TRADING CARDS
1. You will need 16 note-cards.
 2. Your notes-cards need to have one hole punched in
the upper right hand corner.
 3. You will take notes on your cards.
 4.The front of the card will have the name of the
organelle and a picture
 The back will have the function of the organelle
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TRADING CARDS
FRONT:
 MITOCHONDRIA
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BACK: (function)
Mitochondria are rodshaped organelles that
can be considered the
power generators of the
cell, converting oxygen
and nutrients into
adenosine triphosphate
(ATP).
PLASMA (CELL) MEMBRANE
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The boundary of
the cell.
Two layers of
phospholipids and
one layer of
protein.
Allows different
substances in and
out of the cell
CYTOPLASM
Gel-like
substance
residing inside
the cell
membrane
holding all the
cell's organelles
in place
THE NUCLEUS
Houses the DNA
Has pores to let
the RNA leave
Center of the
nucleus is a
nucleolus =
makes
ribosomes
RIBOSOMES
Small non-membrane
bound organelles.
 Makes proteins
 Can be free or attached to
ER
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ENDOPLASMIC RETICULUM
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1.
2.
Smooth
Endoplasmic
Reticulum
Complex network of
transport channels.
Two types:
Smooth- ribosome
free and functions in
poison detoxification.
Rough - contains
ribosomes and
releases newly made
protein from the cell.
GOLGI APPARATUS
A series of flattened
sacs that modifies,
packages, stores,
and transports
materials out of the
cell.
 Works with the
ribosomes and
Endoplasmic
Reticulum.
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LYSOSOMES
Help
digest
waste inside
the cell.
CENTRIOLES
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Found only in animal
cells
Helps build cilia and
flagella
Helps cell divide
CYTOSKELETON
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Acts like a skeleton and gives the cell its shape.
MITOCHONDRION
Produces
the
cells energy
compound, ATP
THE CHLOROPLAST
Contains chlorophyll
(green pigment)
 Found only in plants
and algae.
 Captures light so the
plant can
photosynthesis
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CILIA AND FLAGELLA
Cilia: short hair like
projections used by animal
cells for movement
Flagella: a tail-like
projection used for
locomotion.
PSEUDOPOD
A temporary projection
of the cytoplasm of
certain cells.
•Phagocytes – used for
engulfing cells
• Unicellular organisms,
especially amoebas serves in locomotion
THE VACUOLE
Sacs that help in
food digestion or help
the cell maintain its
water balance.
 Found mostly in
plants and protists.
 Plants have large
central vacuole for
water storage.
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CELL WALL
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Extra structure surrounding the plasma
membrane in plants, algae, fungi, and
bacteria.
Plants - Made of Cellulose
 Fungi - Made of Chitin
 Bacteria - Made of Peptidoglycan
 Algae – Varied components
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Compare and Contrast
Prokaryotes
Circular DNA
No nucleus
Capsule
Cell membrane
Contain DNA
Ribosomes
Cytoplasm
Flagella
Eukaryotes
Linear DNA
Nucleus
Endoplasmic reticulum
Golgi apparatus
Lysosomes
Vacuoles
Mitochondria
Cytoskeleton
Venn Diagrams
Compare and Contrast
Animal Cells
Centrioles
Lysosomes
Cilia
Flagella
Plant Cells
Cell membrane
Ribosomes
Nucleus
Endoplasmic reticulum
Golgi apparatus
Vacuoles
Mitochondria
Cytoskeleton
Central Vacuole
Cell Wall
Chloroplasts
CELL TYPES (REVIEW)
Eukaryotic
1. Contains a nucleus
and other membrane
bound organelles.
2. Rod shaped
chromosomes
3. Found in all
kingdoms except the
Eubacteria and
Archaebacteria
Prokaryotic
1. Does not contain a
nucleus or other
membrane bound
organelles.
2. Circular
chromosome
3. Found only in the
Eubacteria and
Archaebacteria
Kingdoms
INSIDE THE CELL
CLOSER:
 Word splash
 Write down as many
words as you can as
you watch the video
clip..
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