Chapter 1

The principle that organisms cause certain diseases is called the

Germ Theory of Disease

The disproving of spontaneous generation led to an era referred to as the

Golden Age of Microbiology

John Tyndall's experiments in the 1800s showed that microorganisms remained in some broths even after boiling for 5 hours. He later realized that the results of his experiments were due to the presence of endospores. Pasteur might have had results similar to Tyndall's if he had used which material(s) to make his broths? a) hay b) soil c) yeast extract d) sugar

a) hay b) soil

The concept of living things arising from vital forces in non-living or decomposing materials was known as which of the following: a) deductive reasoning b) spontaneous generation c) biogenesis d) germ theory of disease

b) spontaneous generation

Some scientists were skeptical of Pasteur's results because they...

could not reproduce his results

John Needham's experiments in the 1700s showed that broths that had been boiled and then sealed with a cork...

could still give rise to microorganisms

Which organisms typically lack a membrane-bound nucleus? a) algae b) yeast c) protozoa d) archaea e) bacteria

d) archaea e) bacteria

Unlike the term microorganism, the term microbe also includes a) bacteria b) fungi c) protozoa d) viruses

d) viruses

For the name Streptococcus pyogenes, the first part (Streptococcus) indicates the

genus

Lazzaro Spallanzani's experiments in the 1700s showed that flasks of broths that had been boiled for long periods of time and sealed...

remained sterile

Who helped disprove spontaneous generation?

Pasteur