KEY CONCEPT Cells are the Basic unit of life.

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• KEY CONCEPT Cells are the Basic unit of life.

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• 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.

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• 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

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• 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.

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• 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.

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• Early studies led to the development of the cell
  theory.

• The Cell theory has three principles.
• All organisms are made of cells.

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• 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.

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• 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.

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

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• Prokaryotic cells lack a nucleus and most
  internal structures of eukaryotic cells.
• All cells share certain characteristics.
• Cells tend to be microscopic.

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• 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.

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• 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.

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• There are two cell types eukaryotic cells and
  prokaryotic cells.

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

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

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

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• 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.