Which Feature Does Not Characterize the Proximal Convoluted Tubule

question 236

Multiple Choice

Which feature does not characterize the proximal convoluted tubule?

• A) It is responsible for most of the reabsorption of water and solutes from the filtrate.
• B) It has cells with numerous microvilli on their apical surfaces, indicating it is a site for reabsorption.
• C) It performs isosmotic reabsorption.
• D) It has cells with numerous mitochondria, indicating they are metabolically very active.
• E) Because of its activities, fluid entering the loop of Henle has the same osmolarity and composition as blood plasma.

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