The Filtrate in the Proximal Convoluted Tubule of the Human

Question

The filtrate in the proximal convoluted tubule of the human does not normally include
A) ions.
B) glucose.
C) plasma proteins.
D) amino acids.
E) dissolved gasses.

Accepted Answer

The proximal convoluted tubule of the human nephron filters small molecules, ions, and water from the blood, but plasma proteins are too large to be filtered and should not be present in the filtrate. Therefore, the correct answer is C, plasma proteins. The other options, including ions, glucose, amino acids, and dissolved gasses, can usually be found in the filtrate.