The Figure Below Details an Experiment to Determine If Paramecia

question 102

Multiple Choice

The figure below details an experiment to determine if Paramecia digest food in an acidic environment. What can you hypothesize about why the vacuole color returns to red?

• A) The pH returns to a basic environment due to increasing proton concentration.
• B) The pH returns to a basic environment due to a decreasing proton concentration.
• C) The dye from all food vacuoles coalesces into one vesicle destined for exocytosis.
• D) All of the above might explain why the vacuole returns to a red color.
• E) None of the above are plausible explanations.

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Definitions:

Predetermined Overhead Rate

An estimated rate used to allocate manufacturing overhead costs to individual products or job orders, based on a certain activity base.

Machine-Hours

A measure of production output or activity based on the number of hours machines are operated in the manufacturing process.

Job-Order Costing System

An accounting method used to accumulate and assign costs to custom or unique products or jobs.

Predetermined Overhead Rate

A rate used to allocate manufacturing overhead to products or job orders, based on estimated costs and activity levels.