The Origin of Life By: DeAndre Humber IB Biology P.5
By: DeAndre Humber
IB Biology P.5
Hello! My name is Louis Pasteur and I am a Biologist, MicroBiologist, and Chemist! I am mostly known and recognized for my experiments on the spontaneous generation!
I am going to demonstrate how I tested the spontaneous generation using two swan necked flasks and nutrient broth!
The first process of my theory is to boil and sterilize the nutrient broth into the two swan necked flasks, to kill most of the microbes that are there.
The second process of my theory is to break off one of the necks of the swan necked flasks, making dust particles and air make contact with the broth, while the neck of the other flask is preventing any dust particles to enter the flask to make contact with the broth.
The exposed flask with the broken swan neck eventually turned a dark color, hinting that there has been microbial growth. The flask without the broken swan neck has remained the same, leaving it with no microbial growth.
Thank you for viewing theory on spontaneous generation, and how life began in general. I really hope you enjoyed my thoughts on how our life began!!
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