Substances can enter the renal tubules by what renal processes?
A) filtration only
B) reabsorption only
C) secretion only
D) both filtration and secretion
E) both reabsorption and secretion

Question

Quizplus · Accepted Answer

Substances can enter the renal tubules through both filtration and secretion. Filtration occurs at the glomerulus, where substances are filtered from the blood into the tubules. Secretion involves the active transport of substances from the blood into the tubules at sites other than the glomerulus.

Substances Can Enter the Renal Tubules by What Renal Processes