Formation of Urine

Question 1

1.Filtration

Answer 1

Blood enters the nephron’s glomerulus, where small molecules (water, electrolytes, waste products) are forced out of the bloodstream and into the Bowman’s capsule to form a filtrate.

Question 2

2.Reabsorption

Answer 2

As the filtrate flows through the renal tubule, essential substances (glucose, amino acids, electrolytes) are reabsorbed into the bloodstream

Question 3

3.Secretion

Answer 3

Additional waste products (urea, creatinine, drugs) are actively secreted from the blood into the renal tubule

Question 4

4.Concentration

Answer 4

The remaining fluid in the tubule becomes urine as it undergoes further concentration and dilution depending on the body’s hydration status.

Question 5

5.Collection

Answer 5

Urine from multiple nephrons is collected in the renal pelvis and transported to the bladder for storage