Final answer:
Approximately 1050 mL of blood flows through the kidneys each minute, with 578 mL plasma/min being filtered through glomeruli, resulting in approximately 0.9 mL of urine produced per minute.
Step-by-step explanation:
In the human body, approximately 1050 mL of blood passes through the kidneys each minute. This is because the heart pumps about 5 liters (5000 mL) of blood per minute and around 21% of this blood flows into the kidneys, which is approximately 1050 mL. Considering the hematocrit level, which is the proportion of blood volume that is occupied by red blood cells, the renal plasma flow can be determined. With a hematocrit of 45%, the plasma flow is about 55% of the total blood flow, amounting to 578 mL plasma/min. From this plasma, around 19% enters Bowman's capsule, giving us a glomerular filtration rate (GFR) of about 110 mL/min. However, since the kidneys are highly efficient at reabsorbing this filtrate, only about 0.9 mL of urine is produced per minute.