Q.

Which is true w.r.t swan-neck flask experiment conducted by Louis Pasteur?

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a

He showed that in all pre-sterilized flasks life appeared from killed yeast

b

The experiment was conducted to disprove theory of abiogenesis theory

c

In the flask, which is open to air, new living organisms were formed from killed yeast.

d

Life appeared in the flask which was not exposed to air

answer is D.

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Detailed Solution

Louis Pasteur showed that in pre-sterilised flasks, life did not come from killed yeast while in another flask open to air, new living organisms arose from ‘killed yeast’.

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Which is true w.r.t swan-neck flask experiment conducted by Louis Pasteur?