Spontaneous Generation

Question 1

Spontaneous Generation

Answer 1

The idea that all living things come from non-living things, i.e. cracks in pavement = grass

Question 2

Francesco Redi’s Experiment

Answer 2

Used three containers of meat: One closed, one open, and one with mesh
Observed how flies behaved around each container
Showed how the flies were laying microscopic eggs

Question 3

Maria Sibylla Merian’s Observations

Answer 3

Made drawings on plants/insects and discovered new things
Documented insect metamorphosis
Observed how insects laid eggs on the leaves, not the leaves created insects

Question 4

Louis Pasteur

Answer 4

Made observations on microscopic things, specifically principles of vaccination and microbial fermentation
CREATED PASTEURIZATION
Observed how the bacteria in the air was spoiling the soup/milk
Used vials to discover that heat killed bacteria
Not broken vial = good
Broken vial = bacteria

Question 5

Cell Theory

Answer 5

1. All animals come from cells
2. All plants come from cells
3. All cells come from preexisting cells

Question 6

Hans and Zacharias Janssen

Answer 6

1595: Created the first microscopes
Combined two convex lenses: mag 9x

Question 7

Robert Hooke

Answer 7

1665: Coined the term “cell”
Looking through a microscope and thought that they looked like cork cells
Microscopes mag 50x

Question 8

Anton Van Leeuwenhoek

Answer 8

1674: Studied scrapings of teeth, gum, pond scum
called the moving thingies “animalcules”
Microscopes mag 270x

Question 9

Matthias Schleiden

Answer 9

1838: All plants are made of cells

Question 10

Theodor Schwann

Answer 10

1838: All animals are made of cells

Question 11

Rudolf Virchow

Answer 11

All cells come from preexisting cells