In a healthy man, glucose is not found in urine. Which one of the following statements justifies this?
The filtration membrane is permeable to urea but impermeable to glucose
Glucose is neither filtered nor secreted into the renal tubule
Tubular cells utilize glucose to generate ATP required for active transport
Glucose is completely reabsorbed into the blood from the proximal convoluted tubule.
Nearly all the essential nutrients (e.g. glucose and amino acids) in the filtrate are reabsorbed from the proximal convoluted tubule.