Microbiology FINAL

What is spontaneous generation?

C. The theory that living organisms may arise from nonliving matter.

What is a hypothesis?

A hypothesis is a possible answer to a scientific question

Which scientist definitively ended the debate over spontaneous generation?

A. Louis Pasteur

What is the first disease shown to be of bacterial origin?

Anthrax

When conducting an experiment, it is generally necessary to include____ groups that are treated exactly the same as treatment groups except for the condition being tested.

B. Control

Which of the following steps is NOT included in the scientific method?

B. Repeat experiment until desired result is achieved.

If the results from an experiment contradict the hypothesis, what should be a scientists next step?

B. The scientist should reject or modify the hypothesis.

How did Francesco Redi attempt to disprove the theory of spontaneous generation?

D. He performed a series of experiments involving decaying meat and maggots.

A cell that contains a nucleus is called a(n) ( prokaryotic/ archael/ eukaryotic) cell.

Eukaryotic

Identification of bacteria in the laboratory usually begins with the ____ for placement in one of two large groups of bacteria.

Gram stain

Some critics of Spallanzani's experiments thought that the reason sealed flasks were unable to spontaneously generate microorganism was that there was not enough air present to support life. How did Louis Pasteur respond to this claim?

He modified the experiment to include air as treatment.

A scientist conducts experiments to test a (n) (observation/ hypothesis/ theory)

Hypothesis

Microbes that cause infectious disease are called (pathogens/ germs/ viruses)

Pathogens

Antoni van Leeuwenhoek was the first person in history to

View microrganisms and record these observations