1. Cell Discovery and Theory
7.1

2. History of the cell theory
Robert Hooke observed what he called a “cell” with a simple microscope.
He called it a “cell” because it reminded him of the small, boxlike rooms that monks lived in.
Microscope technology helped scientists learn more about cells
The cell is the most basic unit of life.

3. The cell theory
The observations of scientists Matthias Schleiden, Theodor Schwann, and Rudolph Virchow led to the ideas of the cell theory.
All living organisms are composed of one or more cells.
Cells are the basic unit of structure and organization of all living organisms.
Cells arise only from previously existing cells, with cells passing copies of their genetic material on to their daughter cells.

4. Cell types Prokaryote- Eukaryote No nucleus No organelles Has DNA
Has cytoplasm
Has a cell membrane
Pro means NO!
No nucleus, NOT HUMAN/ ANIMAL CELLS
Prokaryotes are bacterial cells
Eukaryote
Has a nucleus
Has organelles
Has DNA
Has cytoplasm
Has a cell membrane
Eu means YOU!
You have a nucleus in your cells, your cells are Eukaryotic
Plant cells are also eukaryotes

5. Cell types There are two types of cells Prokaryote/ prokaryotic
Eukaryote/ eukaryotic

6. Cell types

7. Key points for 7.1 The cell is the most basic unit of life
All cells come from other cells
There are two types of cells
Animal cells are eukaryotic