The Solutions in the Arms of a U-Tube Are Separated

question 34

Multiple Choice

The solutions in the arms of a U-tube are separated at the bottom of the tube by a selectively permeable membrane. The membrane is permeable to sodium chloride but not to glucose. Side A is filled with a solution of 0.4 M glucose and 0.5 M sodium chloride (NaCl) , and side B is filled with a solution containing 0.8 M glucose and 0.4 M sodium chloride. Initially, the volume in both arms is the same.

At the beginning of the U-tube experiment illustrated above, which of the following statements is true?

• A) Side A is hypertonic to side B.
• B) Side A is hypotonic to side B.
• C) Side A is hypertonic to side B with respect to glucose.
• D) Side A is hypotonic to side B with respect to NaCl.

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Definitions:

Net Operating Income

This is the total profit of a company after operating expenses are subtracted from gross income but before income from investments, interest, and taxes are calculated.

Return On Investment

A measure used to evaluate the efficiency of an investment or compare the efficiency of a number of different investments.

Investment Opportunity

An investment opportunity represents a situation where an individual or organization can invest capital with the expectation of achieving a return on the invested amount.

Margin

This is the difference between the selling price of a product and its cost, expressed as a percentage of the selling price.