What did the swan neck experiment prove?
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Herein, what did Pasteur's experiment prove?
Pasteur's experiment showed that microbes cannot arise from nonliving materials under the conditions that existed on Earth during his lifetime. But his experiment did not prove that spontaneous generation never occurred. Eons ago, conditions on Earth and in the atmosphere above it were vastly different.
One may also ask, why did Pasteur bend the neck of the flask? He concluded that germs in the air were able to fall unobstructed down the straight-necked flask and contaminate the broth. The other flask, however, trapped germs in its curved neck, preventing them from reaching the broth, which never changed color or became cloudy.
Subsequently, one may also ask, why was Pasteur's experiment with the swan necked flasks so important?
Louis Pasteur's spontaneous generation experiment illustrates the fact that the spoilage of liquid was caused by particles in the air rather than the air itself. These experiments were important pieces of evidence supporting the idea of germ theory of disease.
How did Pasteur proved biogenesis?
Biogenesis is the theory that living things can only come from other living things. It was developed in 1858 by Rudolf Virchow as a counter-hypothesis to spontaneous generation. In 1861, Pasteur conducted experiments to support the biogenesis theory. He boiled beef broth, sealing some tubes while leaving others open.