31
Question
Observe this famous experiment and illustrate its objective.
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Solution
The correct option is C To falsify the theory of spontaneous generation
- In his famous experiment, Louis Pasteur used a special flask whose neck was shaped like an S or the neck of a swan, hence the name "Swan Neck Flask." He put a nutrient-rich broth in the flask, which he called the "infusion."
- He then boiled the infusion killing any microorganisms which were already present. Then he allowed the infusion to sit.
- Because of the shape of the flask, the infusion was exposed to air. However, dust particles and other things in the air never made it into the infusion as they were trapped in the curve of the Swan Neck Flask.
- This demonstrates that microorganisms do not appear as a result of Spontaneous Generation. Instead, they are introduced into food through dust particles and other things that happen to land on the food.
- Thus, the correct answer is option C.
- In his famous experiment, Louis Pasteur used a special flask whose neck was shaped like an S or the neck of a swan, hence the name "Swan Neck Flask." He put a nutrient-rich broth in the flask, which he called the "infusion."
- He then boiled the infusion killing any microorganisms which were already present. Then he allowed the infusion to sit.
- Because of the shape of the flask, the infusion was exposed to air. However, dust particles and other things in the air never made it into the infusion as they were trapped in the curve of the Swan Neck Flask.
- This demonstrates that microorganisms do not appear as a result of Spontaneous Generation. Instead, they are introduced into food through dust particles and other things that happen to land on the food.
- Thus, the correct answer is option C.
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