A Bacterium Was Grown in Two Test Tubes Filled with Media

question 32

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 colour. If the bacterium is able to produce ATP only by respiration, which result do you expect to receive?

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

Understand the factors contributing to statistically significant and nonsignificant research results.

Realize the importance of clear distinction between independent and status variables to avoid confusion in research interpretations.

Understand the distinctions and complementary aspects of quantitative and qualitative research designs.

Grasp the concept of methodological eclecticism and its importance in mixed methods research.

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Definitions:

Overhead Applied

An accounting method that allocates overhead costs based on a predetermined rate to individual products or job orders.

Direct Labor Cost

The total amount of money paid to employees for the work directly associated with the production of goods or services.

Overhead Cost

Indirect expenses related to the operation of a business, such as rent, utilities, and administration costs.

Materials Used

The raw components or supplies consumed during the manufacturing process to produce goods.