Question

practice it
what is tubular secretion?
the process of transporting substances from the urine into the blood for reabsorption.
the process of transporting substances from the filtrate into the urine for elimination.
the process of transporting substances from the blood into the urine for elimination.
the process of transporting substances from the blood into the filtrate for elimination.
the process of transporting substances from the filtrate into the blood for reabsorption.

Explanation:

Tubular secretion is a process in the kidneys. Substances are moved from the blood (which is outside the nephron tubules) into the filtrate (inside the nephron tubules). This is for the purpose of elimination from the body.

Answer:

The process of transporting substances from the blood into the filtrate for elimination.