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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• The cell theory grew out of the work of many
  scientists and improvements in the microscope.

• Many scientists contributed to the cell theory.

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• The cell theory grew out of the work of many
  scientists and improvements in the microscope.

• More was learned about cells
  as microscopes
  improved with better images and greater
  magnification.

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• Cell Theory is a unifying concept of biology.

1. All organisms are made of cells.

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• Cell Theory is a unifying concept of biology.

• All organisms are made of cells.
• All existing cells are produced by other living
  cells.

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• Cell Theory is a unifying concept of biology.

• 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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• All cells share certain characteristics.
• All cells are enclosed
  by a membrane.
• All cells are filled with
  cytoplasm.
• All cells have DNA.

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• There are two cell types eukaryotic cells and
  prokaryotic cells.
• All animals and plants and some single-celled
  organisms are eukaryotic.
• Bacteria are prokaryotic.

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

• Eukaryotic cells have a nucleus that contains
  DNA.
• Prokaryotic cells do not have a nucleus. DNA is
  free-floating.
  

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

• Eukaryotic cells have organelles surrounded by
  membranes.
• Prokaryotic cells do not have organelles.
  

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nucleus
organelles
eukaryotic
DNA
cytoplasm
cell membrane
prokaryotic
1. cell membrane
2. cytoplasm
3. DNA
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