Match each step in urine formation to its description.
-movement from the nephron lumen to the external environment
A)excretion
B)filtration
C)reabsorption
D)secretion

Question

Quizplus · Accepted Answer

Excretion refers to the elimination of waste products, including urine, from the body through the process of urination.

Answer: B
 Filtration is the initial step in urine formation, where blood is filtered through the glomerulus in the nephron and the filtrate is formed.

Answer: C
 Reabsorption is the process by which the nephron reabsorbs important substances from the filtrate back into the bloodstream, such as glucose, water, and ions.

Answer: D
 Secretion is the process by which the nephron secretes additional waste products, such as drugs or excess ions, from the bloodstream into the filtrate to be eliminated in the urine.

Match Each Step in Urine Formation to Its Description