How Louis Pasteur disprove the theory of abiogenesis?

Answer 1

By actual experimentation, the great French scientist Louis Pasteur disproved this false theory of spontaneous generation.

Abiogenesis is not the same as spontaneous generation! Spontaneous generation actually posits that full born organisms come from miasma and the like. Abiogenesis posits by hypothesis that life is of simpler organic constituents.

Pasteur then entered a contest sponsored by The French Academy of Sciences to disprove the theory of spontaneous generation. Similar to Spallanzani's experiments, Pasteur experiment, pictured in Figure 1-6, used heat to kill the microbes, but left the end of the flask open to the air. In a simple, but brilliant modification, the neck of the flask was heated to melting and drawn out into a long S-shaped curve, preventing the dust particles and their load of microbes from ever reaching the flask. After prolonged incubation the flasks remained free of life and ended the debate for most scientists.

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Abiogensis is not the same as spontaneous generation.

Pasteur's law only disproved the (then current) idea that life forms such as mice, maggots, and bacteria can appear fully formed. It does not say that very primitive life cannot form from increasingly complex molecules.

Answer 2

Do you mean abiogenesis? Biogenesis is just cell theory and cells come from cells.

Pasteur did not disprove biogenesis or abiogenesis. He disproved spontaneous generation which is a very different thing.

Answer 3

Louis broiled broth for 15 min. He then let it sit for one year in a swan neck flask. He noticed that some dust had accumulated in the top part of the flask. So he took a sample, form the broth inside the flask. He noticed that nothing was inside of growing in it. Then he broke the neck of the flask making it easier for the air containing dust to come into the flask. He left it there for one day. The next day the broth was cloudy. Which proved that there were microorganisms in the air and it is not any vital force in the air that grows things.

Answer 4

Louis Pasteur disproved the theory of abiogenesis by conducting experiments that showed living organisms only come from other living organisms. His experiments, including swan-necked flask experiments, demonstrated that sterilized broth remained sterile unless exposed to air carrying microorganisms. This provided evidence in favor of biogenesis, suggesting that life arises from preexisting life rather than spontaneously generating from nonliving matter.

Answer 5

He didn't. He disproved spontaneous generation.

Answer 6

Louis Pasteur disproved spontaneous generation by using swan neck flask for experiments. He also figured germs would get stuck in swan neck and nothing would grow.