Question

practice it
lo 6.3. what are the renal tubules responsible for?
reabsorbing useful substances from the filtrate and secreting waste products into the urine
transporting urine to the bladder
producing urine in the kidneys
filtering urine to remove bacteria
regulating blood pressure in the body

Explanation:

Renal tubules are part of the nephron in the kidney. Their main functions are reabsorption of useful substances (like glucose, amino acids, water, and ions) from the filtrate back into the bloodstream and secretion of waste products (such as certain drugs, hydrogen ions, and potassium ions) into the filtrate (which will become urine). Transporting urine to the bladder is the function of the ureters. Producing urine in the kidneys is a more general kidney function (glomerular filtration is also involved in the initial step of urine formation). Filtering urine to remove bacteria is not a typical function of renal tubules. Regulating blood pressure (e.g., through the renin - angiotensin - aldosterone system) is a function of the kidneys as a whole, not specifically the renal tubules in isolation.

Answer:

Reabsorbing useful substances from the filtrate and secreting waste products into the urine