Cells

Theory, Types,Organelles, and Structure as related

to Function

Theory

• The Wacky Cell Theory • So, the Cell Theory states:• All organisms are made of cells• All existing cells are produced by other living

cells• The cell is the most basic unit of life

Contributors

Hook Leewenhoek Schleiden Schwann

Virchow

Hooke- the 1st to identify and name cellsLeewenhoek- made better lenses so was able to see cells in greater detailSchleiden-found that plants are made of cellsSchwann- concluded that all living things are made of cellsVirchow- proposed that all cells come from other cells

Cells

• Prokaryotic Cells

Cells

• Prokaryotic cells do NOT have a nucleus or other membrane-bound organelles. The DNA is suspended in the cytoplasm. All prokaryotes are

microscopic single cell organisms.

Cells

• Eukaryotic Cells

Cells

• Eukaryotic Cells have a nucleus and other membrane-bound organelles. The nucleus is the

largest organelle and encloses the genetic information. Eukaryotes may be multicellular or

single celled organisms.

Graphic Organizer

• You make it…..NOW. • Move over to the lab tables• find a spot and • make a graphic organizer according to your

notes• Use the “butcher” paper provided • Put your name, date, class period at the top.

Graphic Organizer

Organelles

cytoskeleton nucleus vesicle

Endoplasmic reticulum ribosome centrioleGolgi apparatus mitochondrion

Lysosome cell wall chloroplastvacuole

Cytoskeleton

• You and your partners will add this information on all the organelles in class and the best of the PP slides will be posted here.

For Example Golgi Apparatus (Body)

• Consist of closely layered stacks of membrane enclosed spaces

• Packages proteins• Sorts and stores some of them for later• Transports others to other organelles in the

cell

Cells in Comparison

•How SMALL is a cell anyway?

Why are cells so ….well…. small?