A Bacterium Was Grown in Two Test Tubes Filled with Media

question 22

Multiple Choice

A bacterium was grown in two test tubes filled with media rich in glucose. One tube was sealed to produce anaerobic conditions, and the other was not. A third uninoculated, unsealed tube was used as a control. Glucose utilization by this bacterium causes acid production, which is indicated by a lightening of the media color. If the bacterium is able to produce ATP only by aerobic respiration, we expect lightening of media in ________.

• A) the sealed tube only
• B) the unsealed tube only
• C) the sealed and unsealed tubes only
• D) the control tube only
• E) all three tubes

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Definitions:

Sales Growth

The increase in sales over a specific period, indicating the financial health and expansion rate of a company.

Required Return

The least annual profit percentage that attracts firms or individuals to place investments in a specific security or project.

Dividend Yield

A ratio reflecting the yearly dividend payments of a company as a proportion of its stock price.

Stock Price

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