All living things need cellsAll living things need cells

• The organelles (or parts) of cells The organelles (or parts) of cells allow the characteristics of life to allow the characteristics of life to be metbe met

• There are different types of cells There are different types of cells which meet these qualifications in which meet these qualifications in different waysdifferent ways

Nucleus PresenceNucleus Presence

• If cells do not have a nucleus they If cells do not have a nucleus they are called Prokaryotic Cells are called Prokaryotic Cells

• If cells do have a nucleus they are If cells do have a nucleus they are called Eukaryotic Cells.called Eukaryotic Cells.

The Nucleus The Nucleus

• Is the control Center of the cell. It is the Boss Is the control Center of the cell. It is the Boss and Brain.and Brain.

• All genetic information is kept here thus All genetic information is kept here thus instructions for making proteins and other instructions for making proteins and other necessities.necessities.

• It is often seen as a large Circle under the It is often seen as a large Circle under the microscopemicroscope

Which of the slides do you Which of the slides do you believe were Eukaryotes?believe were Eukaryotes?

• A.Clostridium botulinum and Bacillus A.Clostridium botulinum and Bacillus CereuaCereua

• B.Elodea,Potato, Cheek Cell, Onion CellB.Elodea,Potato, Cheek Cell, Onion Cell

• Answer: BAnswer: B

Animal Cells/ Plant Cells Animal Cells/ Plant Cells are both Eukaryotes!are both Eukaryotes!

Bacteria is not!

Animal Cells/ Plant Cells Animal Cells/ Plant Cells have many things in have many things in commoncommon

MitochondriaMitochondria

• If a cell was a car, gas would be created If a cell was a car, gas would be created here!here!

• Allows the cell to use and maintain Allows the cell to use and maintain energyenergy

• RespirationRespiration occurs here. (Oxygen occurs here. (Oxygen added to proteins to create energy in added to proteins to create energy in the form of ATP (energy!)the form of ATP (energy!)

RibosomesRibosomes

• Take building blocks from broken down Take building blocks from broken down food to make Proteins!food to make Proteins!

• Proteins do different things such asProteins do different things such as– control the rate of reactions in the cell control the rate of reactions in the cell – regulate cell processes regulate cell processes

Endoplasmic ReticulumEndoplasmic Reticulum

• Allows cells to use and obtain Allows cells to use and obtain materialsmaterials

• Channel or tube which materials Channel or tube which materials are transported through the cellare transported through the cell

• Helps to make proteins and Lipids Helps to make proteins and Lipids

Vacuoles Vacuoles

• The storage closet!The storage closet!• Maintains the correct pressure for the cell in Maintains the correct pressure for the cell in

plants so that they don’t explode or burstplants so that they don’t explode or burst

Some organelles are unique to plant Some organelles are unique to plant and Bacteria cellsand Bacteria cells

• Cell Walls Cell Walls are present in plant and bacteria are present in plant and bacteria cells for supportcells for support

• They are like the walls of a house and give They are like the walls of a house and give the cells a rigid shape!the cells a rigid shape!

• ChloroplastsChloroplasts are unique to some plant and are unique to some plant and bacteria cells change energy from the sun bacteria cells change energy from the sun through photosynthesis. Contain Chlorophyll through photosynthesis. Contain Chlorophyll Gives Cells a green colorGives Cells a green color

Which of the Samples do Which of the Samples do you believe were animal you believe were animal cells?cells?Remember Animal CellsRemember Animal Cellshave a less rigid shape/a nucleus/ no chloroplastshave a less rigid shape/a nucleus/ no chloroplasts• A. Clostridium botulinum and ElodeaA. Clostridium botulinum and Elodea

• B. Cheek CellB. Cheek Cell• C. Bacillus Cereus and Clostridium C. Bacillus Cereus and Clostridium

BotuliniumBotulinium• D. Onion CellD. Onion Cell

• Answer: BAnswer: B

Which of the Samples do Which of the Samples do you believe were plant you believe were plant cells?cells?Remember Plant cellsRemember Plant cellshave a rigid shape/a nucleus/ and sometimes chloroplastshave a rigid shape/a nucleus/ and sometimes chloroplastsA.Clostridium botulinum/ Cheek CellsA.Clostridium botulinum/ Cheek Cells

B.Elodea/Potato Cells/Onion CellsB.Elodea/Potato Cells/Onion Cells

C.Cheek Cell/Bacillus CereusC.Cheek Cell/Bacillus Cereus

Answer: BAnswer: B

Why would the Why would the potato/Onion cells not potato/Onion cells not have chloroplasts?have chloroplasts?

A. They are not a plant cellA. They are not a plant cell

B. The cells are not a part of the plant B. The cells are not a part of the plant that photosynthesizesthat photosynthesizes

Answer: BAnswer: B

Bacteria Cells are unique! they are Prokaryotes and Bacteria Cells are unique! they are Prokaryotes and have no Nucleus! They keep their DNA in the have no Nucleus! They keep their DNA in the nucleoid. nucleoid.

They have some things in common with plant and They have some things in common with plant and animal cells to allow them to liveanimal cells to allow them to live

Other things are differentOther things are different

They move/Reproduce in unique They move/Reproduce in unique ways ways

• Some have Flagella to help them move- Like a whipSome have Flagella to help them move- Like a whip• They have a pilli which enables them to hook on to They have a pilli which enables them to hook on to

other cells and reproduce.other cells and reproduce.• They have a capsule which they use for protection.They have a capsule which they use for protection.

Which of the Samples do Which of the Samples do you believe were bacteria you believe were bacteria cells?cells?

A.Clostridium botulinum/ BacillusCereusA.Clostridium botulinum/ BacillusCereus

B.Elodea/PotatoB.Elodea/Potato

C.Cheek Cell/Euglena/Onion CellsC.Cheek Cell/Euglena/Onion Cells

Answer: AAnswer: A

To recap:To recap:• All cells are required for living thingsAll cells are required for living things• Animal/Plant cells are Eukaryotes(Have Animal/Plant cells are Eukaryotes(Have

Nucleus)Nucleus)• Bacteria are not EukaryotesBacteria are not Eukaryotes• All have some organelles in commonAll have some organelles in common• All have some organelles that are All have some organelles that are

differentdifferent

You have two tasksYou have two tasks

• 1. Define organelle and Label 1. Define organelle and Label required organelles on cell required organelles on cell drawingsdrawings

• 2. Create a Creative Cell Project to 2. Create a Creative Cell Project to show your understanding of Cell show your understanding of Cell types and organellestypes and organelles

Creative Cell ProjectCreative Cell Project• You will create lyrics for a song, write a poem or another You will create lyrics for a song, write a poem or another

creative activity creative activity • You will be graded by incorporating the important You will be graded by incorporating the important

organelles of the cell you choose and describe what the organelles of the cell you choose and describe what the function of these organelles are function of these organelles are

• You must also mention how your cell type is different than You must also mention how your cell type is different than the other two and how organelles meet life processes.the other two and how organelles meet life processes.

Creating a presentation which displays creativity and careCreating a presentation which displays creativity and care• You will work in groups up to 3You will work in groups up to 3• You can also work alone. You can also work alone. • Each member will receive the same gradeEach member will receive the same grade• You must present Monday/Tuesday (November 7You must present Monday/Tuesday (November 7thth or 8 or 8thth) )

when I return.when I return.