ORIGIN OF LIFE

LOUIS PASTEUR

• He filled a long neck flask with meat broth, but gravity acted to trap airborne microorganisms trapped in the curve of the neck, then boiled the broth. After time, no microorganism had formed. When the flask was tipped so the broth reached the microorganism trapped in the neck, the broth quickly became cloudy with microscopic life.

PASTEUR'S IDEAS

• He disproved Spontaneous Generation.
• Proved that some microorganism safe airborne
• He added the idea that Contamination came from life forms in the air
• Pasteur finally convinced the learned world the even if exposed to air, life did not arise from nonlife

MILLER AND UREY

• Preformed a chemical experiment that simulated the conditions of the early Earth, and tested the chemical origin of life under those conditions.

IDEAS

• This experiment showed that abiogenesis on Earth is not possible

OPARIN

• Had many theories that could not be tested.

OPARIN'S IDEAS

• There is no fundamental difference between a living organism and lifeless matter. The complex combination of manifestations and properties characteristic of life must have arisen as a part of the process of the evolution of matter.

LIFE

• Based on the experiments I think that life came from carbon based molecules. All of the life forms had to adapt to the conditions of the earth. They developed so they could sustain themselves.