Question Detail
Question
John Tyndall's experiments in 1876, which supported Pasteur's findings, demonstrated that no organisms were produced when pure air was introduced into media, provided what was prevented?
Correct Answer
Option B is the correct answer.
Detailed Explanation
Page 22 states, 'In 1876, the English physicist John Tyndall, who devised an apparatus to demonstrate that air could carry particulate matter supported Pasteur's findings. Tyndall found that no organisms were produced when pure air was introduced into media capable of supporting the growth of microorganisms.' The implication is that preventing particulate matter (which carried the organisms) was key.
Hint
His apparatus was designed to specifically address the 'dust' or particles in the air.