7-1: Life is Cellular
10
Unit 3: Cells Chapter 7: Cell Structure & Function Ms. Petrucci Biology
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Biology 10
Transcript of 7-1: Life is Cellular
Unit 3: Cells
Chapter 7: Cell Structure & Function
Ms. PetrucciBiology
The Discovery of the Cell
The cell was first discovered by Robert Hooke in 1665 using a microscope.
The Cell Theory
1. ALL LIVING THINGS ARE COMPOSED OF CELLS
2. CELLS ARE THE BASIC UNITS OF STRUCTURE AND FUNCTION IN LIVING THINGS
3. NEW CELLS ARE PRODUCED FROM EXISTING CELLS
The Key Players:
• Hooke
• Leeuwenhoek
• Schleiden
• Schwann
• Virchow
Exploring the Cell
• Light Microscopes
• Electron Microscopes– SEM– TEM
• Scanning Probe Microscopes
Prokaryotes and Eukaryotes
• Pro = Before
• Karyon = Nucleus
• Eu = True
• Commonalities: – SURROUNDED BY A BARRIER CALLED A
CELL MEMBRANE– AT SOME POINT IN THEIR LIFE THEY
CONTAINED DNA
Prokaryotic cell parts
Prokaryotic cells have
genetic material
that is NOT contained
in a nucleus
Eukaryotic Cells: Animal Cell
Eukaryotic cells
contain a nucleus in which their
genetic material is separated from the
rest of the cell.
Eukaryotic Cells: Plant Cells
Eukaryotic Cells: Plant Cells
