Question

Who decided heat-resistant microbes to be endospores?

A. Ignaz Semmelweis
B. Joseph Lister
C. Louis Pasteur
D. Robert Koch

Answer 1

Louis Pasteur is the individual best known for the discovery that some microbes can form heat-resistant structures called endospores.

Step-by-step explanation:

The individual who is credited with discovering that heat-resistant microbes are endospores is Louis Pasteur. The Golden Age of Microbiology was a period rich in discovery, particularly due to the contributions of Pasteur and Robert Koch.

While Pasteur was primarily known for pasteurization and his work in immunology, Koch established rigorous criteria for linking microbes to specific diseases, known as Koch's postulates. However, it was Pasteur's research which laid the groundwork for understanding the durable forms of bacteria, known as endospores, which can withstand extreme conditions that would normally kill other bacteria. Therefore, the correct answer to the question is "C. Louis Pasteur."

Answer 2

Louis Pasteur is credited with the discovery that heat-resistant microbes were endospores, contributing significantly to the field of microbiology and germ theory of disease. C is the correct answer.

Step-by-step explanation:

The individual who discovered that heat-resistant microbes were endospores is none other than Louis Pasteur.

Louis Pasteur's pioneering contributions to microbiology include the disproval of spontaneous generation, the development of pasteurization, and the creation of vaccines against diseases such as anthrax.

His work, along with that of Robert Koch, who formulated Koch's postulates, greatly substantiated the germ theory of disease. Therefore, the correct option in the context of microbes.