Question 1

Benzoic acid is largely a(n) (antifungal/antiprotozoal/pickling) agent and does not affect the growth of many bacteria.

Accepted Answer

The answer of Benzoic acid is largely a(n) (antifungal/antiprotozoal/pickling) agent...

Question 2

How does water quality testing make use of environmental microbiology?

Accepted Answer

The answer of How does water quality testing make use...

Question 3

Brandy is made by the same process as wine, but the alcohol is then concentrated by (fermentation/distillation/filtration).

Accepted Answer

The answer of Brandy is made by the same process...

Question 4

Botryococcus braunii is an alga that produces hydrocarbons at (10/20/30) percent of its dry weight and could be harvested in the future as an alternative fuel.

Accepted Answer

The answer of Botryococcus braunii is an alga that produces...

Question 5

Compare and contrast the two types of foodborne disease.

Accepted Answer

The answer of Compare and contrast the two types of...

Question 6

Freezing food and then using a vacuum to draw off the ice crystals is called (dehydration/lyophilization/sublimation).

Accepted Answer

The answer of Freezing food and then using a vacuum...

Question 7

The anthrax attack of fall 2001 was accomplished by mailing the agent in ordinary envelopes. This method of delivery took advantage of the ability of Bacillus anthracis to produce (aerosols/endospores/toxins).

Accepted Answer

The answer of The anthrax attack of fall 2001 was...

Question 8

Compare the use of biosensors with traditional methods of determining microbial contamination.

Accepted Answer

The answer of Compare the use of biosensors with traditional...

Question 9

The organic material found in topsoil is called (humus/peat/compost).

Accepted Answer

The answer of The organic material found in topsoil is...

Question 10

What are the levels of microbial associations in the environment? How do they relate to an ecosystem?

Accepted Answer

The answer of What are the levels of microbial associations...

Question 11

Cyanobacteria produce a cell type known as a(n) (akinete/heterocyst/nodule) that protects nitrogenase from the exposure to oxygen.

Accepted Answer

The answer of Cyanobacteria produce a cell type known as...

Question 12

When one microbeʹs metabolic activities create favorable conditions for another microorganism, this is referred to as (competition/cooperation/facilitation).

Accepted Answer

The answer of When one microbeʹs metabolic activities create favorable...

Question 13

With the (batch/continuous/static) production technique, organisms are allowed to ferment their substrate until it is exhausted.

Accepted Answer

The answer of With the (batch/continuous/static) production technique, organisms are...

Question 14

Smallpox is considered a serious potential biological weapon, whereas anthrax has been successfully used as one. Compare and contrast their potential with regard to the criteria for assessing biological threats.

Accepted Answer

The answer of Smallpox is considered a serious potential biological...

Quiz 25: Applied and Environmental Microbiology