Question

In the kidneys, filtration of waste from blood takes place in the

• A. Urinary bladder
• B. Nephron
• C. Glomerulus
• D. Ureter

Answer 1

Answer: (C)

Glomerulus

• Filtration mainly occurs in the glomeruli (tuft of capillaries).
  
• The blood pressure forces the blood plasma to diffuse through the capillary walls in the glomerulus.
• The blood plasma contains water, glucose, amino acids, and urea (nitrogenous waste).
• The blood cells and proteins being large in size do not pass through the capillary wall.
• So, the correct answer is 'Glomerulus'.