Question

Describe the ‘theory” of Spontaneous Generation and how Francesco Redi and Louis Pasteur disproved the theory, using the process of scientific method.

Answer 1

According to spontaneous generation theory , living organisms originated from non living matter. According to this theory living organisms could be originated with out need of previous living organisms. Example- maggots could be arise from dead meat or fish, similarly fleas from dust etc.

scientist named Redi and Louis pasteur disapprove this theory by performing their experiments  

Both experiment are explained in attached image below.

- Redeli experiment) he desgined a scientific experiment to disapprove the spontaneous creation Theory - he placed fresh meat in jou open and open jar and closed jar (closed with a polus cloth) 1 osob maspoti open jar Cintrining meat jar mouth covered with purus cota > maggots could be seen - masates are niet present in meat present in cloth yas flies can reach -as meat is protected by to meat and lay - covereny cloth their eggs in heat these two support that new flies not origmated from dead meat flies atpacted to dead meat and lay their egg an heat so najgots can be

- to this prove originates that from life could not be dead too matter Louis Pasture experiment - o he did swan experiment hell -trapped meiroses and dust booth C nutrient prescant in frosk sterlized media) is & booth booth semain ofterit costo -as dust and mirobes trapped mi to swen helt not able to relet, broth , no growth in booth when tilted shon flask booth touch to neek where dist after incubation was sine day growth Can be seen i broth - during filting bacterial growth a ir dust my wth broth

This shows no life can be seen in broth after sterlization if it is kept protected from exposure of the microbes. Means microbes are required for growth in the broth.