Exam 26: Applied and Environmental Microbiology

Which of the following human diseases may result from exposure to soil containing the microbe responsible?

Bioremediation is the process of using organisms to clean up toxic,hazardous compounds by degrading them to less harmful substances.

The enzyme (amylase/hyaluronidase/lipase)can be used in injected medications to enhance their rate of absorbance.

Which of the following is a specific example of bioremediation?

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

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.

Canned foods are prepared using the same temperature as is used for autoclaving.

A patient is brought to the emergency room in a comatose state.The family reports he had complained of nausea and a bad headache in the past couple of days.They also report they had engaged in their normal summer activities: picnicking,fishing and swimming at the lake near their home.His fever is high,and while in the ER,he has a seizure.Which of the following is likely to be responsible for his symptoms?

A new industrial park in your community dumps its wastewater into a large aerated pond,to which nutrients are added.The water from this pond makes its way into a nearby marsh,which eventually drains into a slow-moving stream.This is an example of

The milk product known as (curd/yogurt/whey)is the basis of cheese production.

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

Which of the following is a common source of antibiotics?

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

Which of the following is considered an intrinsic factor for food spoilage?

Through recombinant DNA technology,many plants now can manufacture their own Bt toxin,which improves fermentation.

Which of the following bacteria is a common soil contaminant that may cause disease in humans?

A few hours after a dinner party,most of the people who attended begin to suffer nausea,vomiting,and diarrhea.The food at the meal is suspected as the source,although no unusual microbes are cultured from samples of the food or from stool samples.These observations suggest they may be suffering from food (infection/intoxication).

During treatment of water to make it potable,about 90% of the microbes are removed

How does water quality testing make use of environmental microbiology?

Which of the following additives help preserve food as well as enhancing flavor?