Cells!http://www.youtube.com/watch?v=gFuEo2ccTPA -- Introduction (Click here)

The Animal Cell

http://waynesword.palomar.edu/images/plant3.gifThe Plant Cell

Prokaryotic CellsNO NUCLEUS!!!First cell type on earthExample: Bacteria!

EukaryoticHave a NUCLEUS and membrane-bound organelles---include most living things

PlantAnimalhttp://library.thinkquest.org/C004535/eukaryotic_cells.html

CellsSmallest living unitMost are microscopic

Principles of Cell Theory1. All living things are made of cells

2. Smallest living unit of structure and function of all organisms is the cell

3. All cells arise from preexisting cells

Discovery of CellsRobert Hooke (1665)- coined the word cellsObserved sliver of corkSaw row of empty boxesHe named these empty boxes CELLS!

Cell theory(1839)Theodor Schwann & Matthias Schleiden all (living things) are made of cells-Schwann (animal); Schleiden (plants)

(50 yrs. later) Rudolf Virchowall cells come from cells

The Microscope Microbe Man!Anton van Leeuwenhoek (1674)Introduced the world to microbes. Observed tiny organisms in pond water.

Made books with sketches and descriptions

Built over 200 microscopes! (Hans and Janssen invented it though in the 1590s)

Cell MembraneFunction: controls what goes in and out of the cell.Analogy: like a bouncer at a club because a bouncer controls who can come in.In BOTH plant and animal!!

CytoplasmFunction: a jelly-like substance that holds organelles in placeAnalogy: like a jello fruit cup because the jello holds the fruit in place just like the cytoplasm does for the organelles!In BOTH**

Nucleus Function: controls the cells activitiesAnalogy: like a president because a president controls what goes on in a country.Both

RibosomeFunction: Makes proteinsAnalogy: like Kentucky Fried Chicken because KFC makes protein (chicken)!BBoth

LysosomeFunction: the cells stomach; breaks down food and cell partsAnalogy: like a car crusher because car crushers breaks down cars OR like a stomachOnly in Animal Cells

Endoplasmic ReticulumFunction: moves proteins around the cell*Rough ER: Has ribosomes on it!*Smooth ER: No ribosomes.Analogy: its like a train because trains move things from place to place or like UPS**In BOTH

Golgi ApparatusFunction: storing & packing proteinsAnalogy: like a packer because a packer will pack up your things and store them in a safe place.**In Both

ChromosomesFunction: contains genetic DNA that is passed onAnalogy: like a drivers license or social security card because they both carry important information about you!In Both

MitochondriaFunction: Provides energy. Powerhouse of the cell!!!Analogy: like a power plant because it gives energy to the rest of the cell.**Both**

CholoroplastFunction: takes solar energy ad turns it into chemical energyAnalogy: like a solar panel because a solar panel takes solar energy and turns it into electrical energy.ONLY IN PLANTS!

Function: supports and protects cell; in plants only

Freely permeable*Why is the cell wall important?* Only in plantsCell Wall

VacuoleFunction: Store nutrients and water

Analogy: like a water balloon because it can hold water until you need to use it!**In Both but a LARGE vacuole is ONLY in plants

Large VacuolePLANTS ONLY!

CytoskeletonFunction: Provides shape and support for the cell. Its the skeleton.Analogy: Its like our skeleton because our skeleton gives us support and shape. ***Both***

Flagella / CiliaFunction: cell movement.

*In Animal and prokaryotic cells*

Cilia on a Paramecium

Interactive cells!http://learn.genetics.utah.edu/content/begin/cells/insideacell/

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