Germ Theory Review

The idea of 'bad air' or 'Miasma Theory' gave support to _______________, the idea that something living could come from something not living.

• spontaneous combustion

• spontaneous generation

• regeneration theory

• germ theory

Louis Pasteur developed a process of heating a broth to kill off the microorganisms called ______________ which helped to reduce the spoilage of things like milk and beer.

• Pasteurization

• Calcification

• Kochification

• Brothization

The idea of using a weakened form of the pathogen to build immunity became known as a

Koch's 4-postulates:

1. The microbe must be present in all cases of the disease

2. The microbe must be isolated and cultured in pure culture.

3. The microbe, when inoculated into a healthy host, must cause the disease.

4. 4. The microbe must be re-isolated from the inoculated host and shown to be the same as the original microbe.

This experiment was performed on what kind of animal(s):

• Horse

• Mice

• Bats

• Chickens

What is a pathogen that cannot replicate on its own, but could replicate inside of a plant called?

Bacteriophages are viruses that infect and replicate within bacteria?

• True

• False

The tobacco mosaic virus was the first virus to be crystallized and photographed?

• True

• False