The Dawn of the Cell
First observation of a cell (Hooke): 1665
The Cell Theory was written: Mid 1800s
Schleiden, Schwann, & Virchow
The Unified Cell Theory
1. Every living organism is made up of cell(s)
2. The cell is the basic unit of life
3. All cells arise from preexisting cells
Basic Features of a Cell
Diverse
Simple to complex
4 uniting features
1. Cell or Plasma Membrane
a. Physical barrier
2. Cytoplasm
a. Fluid-filled inside
b. Mostly water
3. Nucleus or Nucleoid Region
a. Area in the cell where DNA is found
4. Ribosomes
a. Molecules that synthesize proteins
Types of Cells
Prokaryotic Cell
First observation of a cell (Hooke): 1665
The Cell Theory was written: Mid 1800s
Schleiden, Schwann, & Virchow
The Unified Cell Theory
1. Every living organism is made up of cell(s)
2. The cell is the basic unit of life
3. All cells arise from preexisting cells
Basic Features of a Cell
Diverse
Simple to complex
4 uniting features
1. Cell or Plasma Membrane
a. Physical barrier
2. Cytoplasm
a. Fluid-filled inside
b. Mostly water
3. Nucleus or Nucleoid Region
a. Area in the cell where DNA is found
4. Ribosomes
a. Molecules that synthesize proteins
Types of Cells
Prokaryotic Cell
