A Bacterium Is Inoculated into a Tube of Thioglycollate and Incubated

question 46

Multiple Choice

A bacterium is inoculated into a tube of thioglycollate and incubated. After incubation, turbidity appears throughout, top to bottom, with the greatest turbidty at the very top. This bacterium would be called a(n) ______.

• A) obligate aerobe
• B) facultative anaerobe
• C) aerotolerant microbe
• D) microaerophile
• E) psychrotroph

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Definitions:

Homogeneous Products

Products that are identical in quality and cannot be distinguished by consumers, making them perfect substitutes.

Marginal Revenue

The additional revenue that a firm receives from selling one more unit of a product or service.

Perfectly Competitive Industry

A market structure where many firms offer identical products, and no single buyer or seller has the market power to influence prices.

Price Setters

Firms or entities that have the ability to influence or set the price of goods and services in a market due to lack of competition or market dominance.