Final answer:
The kidneys have a Glomerular Filtration Rate (GFR) of about 125 mL/min in males and 105 mL/min in females, totaling around 180 liters/day in males and 150 liters/day in females, with 99% reabsorption rate.
Step-by-step explanation:
The Glomerular Filtration Rate (GFR) represents the total volume of filtrate formed by both kidneys each minute. Under resting conditions, the heart pumps approximately 5 liters of blood per minute, with around 20 percent, or 1 liter, entering the kidneys to be filtered. This results in an average GFR of about 125 mL/min in males and 105 mL/min in females. Over the course of a day, these rates add up to about 180 liters filtered in males and 150 liters in females. It is important to note that 99 percent of this filtrate is reabsorbed back into the bloodstream, leaving only 1-2 liters of urine to be excreted each day.