What Creates a Countercurrent Multiplier Rather Than Just a Countercurrent

question 44

Multiple Choice

What creates a countercurrent multiplier rather than just a countercurrent exchanger?

• A) Movement of fluids in close association in opposite directions.
• B) Passive exchange of solutes across two tubes in close approximation.
• C) Osmotic pressure differences in two tubes close together.
• D) Active transport of solute out of one of the tubes.

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