Origin Of Life Flashcards
1
Q
Life originated
Earth is about
A
~3.5 billion yrs ago
~4.6 billion years old
2
Q
First Fossils
A
Stromatolites (bacterial fossils)
3
Q
Proof of photosynthesis
A
Oxidized iron
Because rust is made from water and oxygen
4
Q
Order of Evolution
A
Prokaryotes
Photosynthesis
Eukaryotes
Multicellular eukaryotes
5
Q
Louis Pasture
A
Sealed flask experiment
6
Q
Stanley Miller
A
Recreation of early life experiment
7
Q
Early Life
A
More volcanic activity
No Oxygen
High UV rays
High levels of CO2, CO, and N
8
Q
First genetic material
A
RNA
Self replicating, catalytic molecule
9
Q
Probionist
A
Self assembling liposomes containing organic molecules
10
Q
Endosymbiotes
A
Mitochondria and chloroplast migrate in
11
Q
Endomembrane System
A
Believed to be infoldings of the plasma membrane
