12. Microbial Metabolism

Indicate whether each of the following statements is true or false. Rewrite the underlined phrase to make a false statement true.

_______Methane is a gas produced by microbial metabolism that can be used directly as a fuel source.

Indicate whether each of the following statements is true or false. Rewrite the underlined phrase to make a false statement true.

_______The treatment of drinking water and the treatment of sewage involve similar processes.

The two types of industrial fermentation equipment are designed for ________ production or ________ production.

A primary goal in wastewater treatment is to reduce the _________.

A ________is a device composed of microbes and electronics used to detect other microbes or their products.

Match each term with its correct definition.

1._______ Organisms whose presence in water indicates contamination from feces

2._______Refers to water that is fit to drink

3._______Used in the processing of animal wastes; mimics primary and secondary wastewater treatment

4._______Water that is not bound by solutes

5._______Undesirable fermentation reactions in food, leading to poor taste, smell, or appearance

6._______Brief heating of foods during processing

7._______Descriptor of the level of organic material present in wastewater

8._______Fermentative products produced by microorganisms during stationary phase

A. Spoilage

B. Water activity

C. Coliforms

D. Pasteurization

E. Secondary metabolites

F. Potable

G. BOD

H. Oxidation lagoon

Label the steps in the cheese-making process.

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Label the steps in the wine-making process.

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Compounds that can be used for energy and are made by microbes are called ________.