Transcript Chapter 7-1: Discovery of Cells

Chapter 7-1: Discovery of
Cells
Cells

Used to believe that disease came from
curses and ghosts
Cells cont…

Invention of the microscopes stopped
this thought

Found the cell—Basic unit that makes up
living organisms
Cells cont..

Antoine VanLeeuwenhoek—Inventor of the
microscope
Cells cont…

Robert Hooke—discovered the cell

Looked at cork under a microscope
Cell Theory Cont…


Matthias Schleidan
Said that all plants must have cells
Cell Theory cont…


Theodore Schwann
Said all animals must have cells
Cell Theory



All organisms are made up of cells
Cells are organized
All cells must come from pre-existing cells
Cell Types

Prokaryotes—simple cells

No nucleus
Ex: Bacteria or Amoeba

Cell Types cont..

Eukaryotes—complex cells

Has nucleus
Ex: Plants and Animals

Organelles



Tiny structures inside the cell
Ex: Nucleus
Central “brain”