Mid term study guide

Question 1

Spontaneous generation

Answer 1

The idea that living things come from non living things

Question 2

Biogenesis

Answer 2

A used state that life arises from previously existing life and never dim things which are not alive

Question 3

Francesco redi

Answer 3

Italian physician 
1668 did experiment with flies and rotting meat
3 jars
One sealed
One stopper one open
Eggs maggots flies but stopper one

Question 4

John needham 1745

Answer 4

Had no variables flawed
Broiled broth in sealed flasks
Saw broth got cloudy concluded that microorganism/bacteria came from broth

Question 5

Lazzaro spallanzani 1768

Answer 5

Broiled broth in sealed flasks fora longer time than needham with one flask covered and the other open
Sealed flasks no bacteria
Open flasks bacteria

Question 6

⭐Louis Pasteur 1859

Answer 6

Chemist 1800
Showed that living things don’t come from non living things
Flask with curved neck no dust could get in but when tipped dust got in
Straight neck dust settled

Question 7

Oparins hypothesis

Answer 7

Gases I earths early atmosphere combined to form more complex compounds found in living things
Primordial soup single cell basic organisms Protista bacteria algae
Gases
Ammonia NH3
Hydrogen H
Methane CH4
Water vapor H2O

Question 8

Stanley miller and Harold Urey

Answer 8

Tested oparins hypothesis and showed that chemicals food in living things could be produced