Figure 5.3 The Solutions in the Arms of a U-Tube (Figure 5.3)

question 23

Multiple Choice

Figure 5.3
The solutions in the arms of a U-tube (Figure 5.3) 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. Refer to the figure to answer the following questions.
-If you examine side A in the figure after three days, you should find

• A) a decrease in the concentration of NaCl and glucose and an increase in the water level.
• B) a decrease in the concentration of NaCl, an increase in water level, and no change in the concentration of glucose.
• C) no net change in the system.
• D) a decrease in the concentration of NaCl and a decrease in the water level.
• E) no change in the concentration of NaCl and glucose and an increase in the water level.

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Definitions:

Aldosterone

A hormone produced by the adrenal gland that helps regulate blood pressure by controlling sodium and potassium levels in the blood.

High Blood Pressure

A condition where the force of the blood against the walls of blood vessels is consistently too high, leading to health risks.

Sodium

A chemical element with symbol Na and atomic number 11, essential for human health, primarily found in the extracellular fluid.

Loop of Henle

A section of the nephron in the kidney essential for concentrating urine and conserving water, involving a counter-current exchange mechanism.