Origin Of Life Flashcards
When did the ‘Big Bang’ happen?
14.6 billion years ago.
How did the sun form?
Explosion of a small volume of matter and energy.
How long was matter being thrown out?
10 billion years.
How long ago did earth and the other planets form?
4.6 billion years ago
What kind of elements when to the center of the earth? What were they?
Heavy elements. Fe and Mg.
What kind of elements went to the outer layers of the earth? What were they?
Lighter elements. C.H.O.N.
What formed the oceans?
Evaporation of H2O formed clouds then it rained for millions of years.
What is the energy source/ formula for life?
Lightning
Who proved Oprarin’s hypothesis?
Stanley Miller.
How did _ prove Oprarin’s hypothesis? What were the results?
He put CHON in a vat and used electricity as a substitute for the lightning. Two weeks later amino acids formed.
What are amino acids?
In all living things, building blocks of protein
Why do we need protein?
Maintenance and repair
Where does life come from?
Chemical changes in the ocean.
Why is Oprarin’s hypothesis not considered spontaneous generation?
Because it took so long.
