Functional Anatomy of
Eukaryotic and Prokaryotic Cells
S AR AH JANE M . BALANA
D e p a r tm e n t o f B i o l o g y – C o l l e g e o f s c i e n c e
P o l y te c h n i c Un i v e r s i ty o f th e P h i l i p p i n e s
,Discovery of Cells
Robert Hooke (1665)
• discovered cells while looking at a thin slice of cork.
• described the cells as tiny boxes or a honeycomb.
• Cells only existed in plants and fungi
Anton van Leuwenhoek (1673)
• discovered the single-celled organisms
animalcules protozoans
• observed blood cells from fish, birds, frogs, dogs,
and humans.
• Cells are found in animals as well.
,150-200 Year Gap???
• Between the Hooke-Leuwenhoek
discoveries and the mid 19th century,
very little cell advancements were
made.
• This is due to the widely accepted,
traditional belief in Spontaneous
Generation.
, 19th Century Advancement
Spontaneous Generation Theory
• life came from inanimate objects
• conclusively disproved by Louis Pasteur
Eukaryotic and Prokaryotic Cells
S AR AH JANE M . BALANA
D e p a r tm e n t o f B i o l o g y – C o l l e g e o f s c i e n c e
P o l y te c h n i c Un i v e r s i ty o f th e P h i l i p p i n e s
,Discovery of Cells
Robert Hooke (1665)
• discovered cells while looking at a thin slice of cork.
• described the cells as tiny boxes or a honeycomb.
• Cells only existed in plants and fungi
Anton van Leuwenhoek (1673)
• discovered the single-celled organisms
animalcules protozoans
• observed blood cells from fish, birds, frogs, dogs,
and humans.
• Cells are found in animals as well.
,150-200 Year Gap???
• Between the Hooke-Leuwenhoek
discoveries and the mid 19th century,
very little cell advancements were
made.
• This is due to the widely accepted,
traditional belief in Spontaneous
Generation.
, 19th Century Advancement
Spontaneous Generation Theory
• life came from inanimate objects
• conclusively disproved by Louis Pasteur
