Answer:
The nephron is the functional unit of the kidney, in which waste products are filtered from the blood and urine is produced.
Step-by-step explanation:
The functional unit of the kidney is the nephron. Its basic functions are:
filtration: some substances are transferred from the blood to the nephrons.
secretion: when the filtered liquid moves through the nephron, it gains additional materials (waste and excess substances).
reabsorption: some useful substances are returned to the blood for reuse.
As a consequence of these activities urine is formed.
Nephron Anatomy
The nephron is made up of two parts:
The renal corpuscle or Malpighio corpuscle, where fluids are filtered.
The renal tubule where the filtered liquid passes.