1 / 17

KEY CONCEPT Cells are the Basic unit of life.

KEY CONCEPT Cells are the Basic unit of life. FL NGSSS SC.912.L.14.1* Describe the scientific theory of cells (cell theory) and relate the history of its discovery to the process of science. (MODERATE)

Download Presentation

KEY CONCEPT Cells are the Basic unit of life.

An Image/Link below is provided (as is) to download presentation Download Policy: Content on the Website is provided to you AS IS for your information and personal use and may not be sold / licensed / shared on other websites without getting consent from its author. Content is provided to you AS IS for your information and personal use only. Download presentation by click this link. While downloading, if for some reason you are not able to download a presentation, the publisher may have deleted the file from their server. During download, if you can't get a presentation, the file might be deleted by the publisher.

E N D

Presentation Transcript


  1. KEY CONCEPT Cells are the Basic unit of life.

  2. FL NGSSS • SC.912.L.14.1* Describe the scientific theory of cells (cell theory) and relate the history of its discovery to the process of science. (MODERATE) • SC.912.L.14.3 Compare and contrast the general structures of prokaryotic and eukaryotic cells.

  3. Many scientists contributed to the cell theory. • 1665- Hooke was the first to identify cells, and he named them. • 1674- Because he made better lenses, Leeuwenhoek observed cells in greater detail • 1838- Schleiden was the first to note that plants are made of cells • 1839- Schwann concluded that all living things are made of cells • 1855- Virchow- proposed that all cells come from other cells

  4. The cell theory grew out of the work of many scientists and improvements in the microscope. • Many scientists contributed to the cell theory. • More was learned about cells as microscopes improved.

  5. The cell theory grew out of the work of many scientists and improvements in the microscope. • Many scientists contributed to the cell theory. • More was learned about cells as microscopes improved. • The cell theory is a unifying concept of biology.

  6. Early studies led to the development of the cell theory. • The Cell theory has three principles. • All organisms are made of cells.

  7. Early studies led to the development of the cell theory. • The Cell theory has three principles. • All organisms are made of cells. • All existing cells are produced by other living cells.

  8. Early studies led to the development of the cell theory. • The Cell theory has three principles. • All organisms are made of cells. • All existing cells are produced by other living cells. • The cell is the most basic unit of life.

  9. Prokaryotic cells lack a nucleus and most internal structures of eukaryotic cells. • All cells share certain characteristics.

  10. Bacterium (colored SEM; magnification 8800x) • Prokaryotic cells lack a nucleus and most internal structures of eukaryotic cells. • All cells share certain characteristics. • Cells tend to be microscopic.

  11. cell membrane Bacterium (colored SEM; magnification 8800x) • Prokaryotic cells lack a nucleus and most internal structures of eukaryotic cells. • All cells share certain characteristics. • Cells tend to be microscopic. • All cells are enclosed by a membrane.

  12. cell membrane cytoplasm Bacterium (colored SEM; magnification 8800x) • Prokaryotic cells lack a nucleus and most internal structures of eukaryotic cells. • All cells share certain characteristics. • Cells tend to be microscopic. • All cells are enclosed by a membrane. • All cells are filled with cytoplasm.

  13. There are two cell types: eukaryotic cells and prokaryotic cells.

  14. nucleus cell membrane • There are two cell types: eukaryotic cells and prokaryotic cells. • Eukaryotic cells have a nucleus.

  15. nucleus organelles cell membrane • There are two cell types: eukaryotic cells and prokaryotic cells. • Eukaryotic cells have a nucleus. • Prokaryotic cells do not have membrane- bound organelles.

  16. nucleus organelles cell membrane • There are two cell types: eukaryotic cells and prokaryotic cells. • Prokaryotic cells do not have a nucleus.

  17. nucleus organelles cell membrane cytoplasm • There are two cell types: eukaryotic cells and prokaryotic cells. • Prokaryotic cells do not have a nucleus. • Prokaryotic cells do not have membrane-bound organelles.

More Related