*copy the information from the class calendar into your agenda.* 1) define prokaryote and provide an...
TRANSCRIPT
*Copy the information from the class calendar into your
agenda.*
1)Define prokaryote and provide an example of an organism that is a prokaryote.2)Define eukaryote and provide an example or a type of cell that is eukaryotic.
Eagle Zone- 8 minutes
Eagle Zone- 8 minutesCreate a Venn Diagram comparing and
contrasting the organelles of prokaryotes and eukaryotes.
The basic unit of life(smallest living unit)
The Cell
The student is expected to:(4a) Compare and contrast the structures of prokaryotic and eukaryotic cells(4c) Compare the structure of viruses to cells
Other science skills3b - The student uses critical thinking and scientific problem solving to make informed decisions. The student is expected to:(3F) research and describe the history of biology and contributions of scientists.
TEKS Science Concepts
Engage:
Describe what you see in this picture
The Amazing Cell (video)From shared drive
Contributing ScientistRobert HookeUsed a microscope to
examine cork (plant) Hooke called what he
saw "Cells"
Using the Microscope
Review for quiz10 minutes
only after the bell rings
Microscope parts AND functions
Using the Microscope
Choose 5 or more parts of the microscope to label
After you label the part, write the function of the part
Draw a line-place extra credit under the line
1 point for each extra part and function- max=5
Cellular DiscoveryUsing the lab sheets provided to you, FOLLOW DIRECTIONS to observe different types of plant, animal, and bacterial cells under the microscope and record your observations. Be sure to CLEAN YOUR SLIDES AND STATION THOROUGHLY WHEN YOU ARE DONE.
Tic- Tac- Toe Project (individual home project)You will be creating 3 small products for this project.Each product will have a grade of it’s own worth 100 points.The grades for each product will be averaged together for one total project grade. There is only one grade for this in the grade book- Not 3!
Explore
Prokaryotes Eukaryotes
Cell membraneContain DNARibosomesCytoplasm
NucleusEndoplasmic reticulum
Golgi apparatusLysosomesVacuoles
MitochondriaCytoskeleton
Compare and Contrast
Prokaryotic Examples
Bacteria
Plant, Animal, Protist, Fungi
eU (you) have eUkaryotes
EUKARYOTIC CELLS
Eukaryotic Example
Plant Cell
Nuclearenvelope
Ribosome(attached)
Ribosome(free)
Smooth endoplasmicreticulum
Nucleus
Rough endoplasmic reticulum
Nucleolus
Golgi apparatus
Mitochondrion
Cell wall
CellMembrane
Chloroplast
Vacuole
Section 7-2
Animal Cells Plant Cells
Centrioles
Cell membraneRibosomes
NucleusEndoplasmic reticulum
Golgi apparatusLysosomesVacuoles
MitochondriaCytoskeleton
Cell WallChloroplasts
Compare and Contrast
Venn Diagrams
Internal Organization
Cells contain ORGANELLES.
Cell Components that PERFORM SPECIFIC FUNCTIONS FOR THE CELL.
The Nucleus
Brain of CellBordered by a porous
membrane - nuclear envelope.
Contains thin fibers of DNA and protein called Chromatin.
Rod Shaped Chromosomes
Contains a small round nucleolusproduces ribosomal RNA
which makes ribosomes.
Cellular Organelles
The cell membraneThe boundary of the
cell.MAINTAINS
HOMEOSTASISComposed of three
distinct layers.Two layers of fat
and one layer of protein.
Cytoplasm A solution made of many different types of molecules
Fills the cell“jelly” fluid
Found in plant, animal, and prokaryotic cells
Central Vacuole
Sacs that store food, wastes, and ions
Helps maintain cell TURGOR pressure
ONLY Found in plants and protists.
The Chloroplast
Double membraneCenter section
contains granaThylakoid (coins)
make up the grana.Stroma - gel-like
material surrounding grana
Found in plants and algae.
Cell Wall
Extra structure surrounding its plasma membrane in plants, algae, fungi, and bacteria.
Cellulose – PlantsChitin – FungiPeptidoglycan - Bacteria
CentriolesFound only in
animal cellsPaired organelles
found together near the nucleus, at right angles to each other.
Role in building cilia and flagella
Play a role in cellular reproduction
LysosomesRecycling Center
Recycle cellular debrisMembrane bound
organelle containing a variety of enzymes.
Internal pH is 5.Help digest food
particles inside or out side the cell.
Flagella
Prokaryote
Sperm
Whiplike tail used for locomotion (movement)
Enables single cells to swim
For cells attached to tissues (like our air passages), it moves liquid over the surface of a cell
Found in some bacteria and single celled eukaryotes
Mitochondria
Powerhouse of the cell
Breaks down sugar into usable energy
called ATPHas its own DNA
Cell membrane
Endoplasmicreticulum
Microtubule
Microfilament
Ribosomes Mitochondrion
Cytoskeleton Framework of the cell Small microfilaments
and larger microtubules. Gives cell its shape and
help with the movement of its organelles.
Golgi Body
A series of flattened sacs that modifies, packages, stores, and transports materials out of the cell.
Works with the ribosomes and Endoplasmic Reticulum.
Endoplasmic Reticulum—Rough and Smooth Complex
network of transport channels.
Two types: 1. Rough
a) contains ribosomes on its surface
b) releases newly made protein to golgi body.
2. Smootha) ribosome freeb) Used for cell
detoxification.
Ribosomes
Small non-membrane bound organelles.
Contain two sub unitsSite of protein
synthesis.Protein factory of the
cellEither free floating or
attached to the Endoplasmic Reticulum.
Mitochondrion
Double MembranousIt’s the size of a
bacteriumContains its own DNA;
mDNAProduces high energy
compound ATP
ElaborateArt Show
Create a drawing of a prokaryotic cell (bacteria) or a eukaryotic cell (plant or animal cell) to be displayed in the E! Art Gallery (hallway)
Include the following information with your drawing:Label at least 6 organelles found in that cell (do not
use nucleus , cell membrane, or cell wall)Provide the functions for the organelles you listedOn the bottom of your construction paper, explain
the difference between a prokaryotic cell and a eukaryotic cell.
Evaluate The students will draw and label both a
prokaryotic and a eukaryotic cell. Pass/Fail
The students will complete a Venn diagram comparing both prokaryotic and eukaryotic cells showing at least two differences.
The students will correctly match at least 10 organelles with their function, using the animal and plant cell model. (quiz and project)
Euka
ryot
eProkaryote
Virus• Bacteria
• No nucleus• Unicellular
• Algae• Have cell walls
• Uses flagella or cilia for movement
• Some have capsules
• Plant cell• Animal cell• Has a nucleus• Has cytoskeleton• Membrane bound organelles• Multicellular• mushroom
• Has DNA and RNA• Performs all
functions of life• Is a cell• LIVING! reproduces
• Has a capsid• No membrane
bound organelles
Takes over other cellsFlu (Influenza)HIVColdsHas DNA or RNA (never both)
Review1. Prokaryotes are single celled organisms found in the
kingdom Eubacteria (Monera). Which of the following cell structures would not be present in prokaryotic cells?
A.Ribosome B.Nucleus
C.Cytoplasm D.Cell membrane
2.What is the function of the nucleus in eukaryotic cells?A.control the functions of the cell b.provide structural support and
protection
C.generate the cell’s supply of energy d.contain waste products of the cell
3.Which of the following is a characteristic of organisms in Archaebacteria, but not Eubacteria?
A.organisms lack peptidoglycan in their cell walls B.organisms are prokaryotic
C.organisms live in extreme environments D.organisms reproduce asexually
4. What is the function of the nucleus in prokaryotic cellsA.control the functions of the cell b.provide structural support and protection
C.generate the cell’s supply of energy d. no function because it’s not present
Eagle Zone1. Correctly match the material of the cell wall
to the type of cell it belongs to_____ peptidoglycan A. fungi_____ cellulose B. bacteria (prokaryotes)_____ chitin C. plants
2. Which cellular process would be affected first if the chloroplast were destroyed?
A.Transport B.Reproduction
C.Photosynthesis D.Respiration
3. Which cellular process would be affected if the mitochondria were destroyed?A. Production of protein .B. Production of oxygenB. Production of ATP D. Production of carbon dioxide