Excretory System

Question 1

What happens at the renal corpuscle?

Answer 1

• filtration of blood from capillaries of glomerulus

- formation of filtrate in the glomerular capsule

Question 2

What happens at the PCT and Loop of Henle?

Answer 2

• reabsorption of sodium, potassium, chloride and bicarbonate ions
• reabsorption of glucose and amino acids
• partial reabsorption of urea
• passive reabsorption of water by diffusion

Question 3

What happens at the DCT

Answer 3

• reabsorption of sodium ions
• active reabsorption of water depending on body’s needs
• secretion of hydrogen and potassium ions, creatinine, and certain drugs like pencillin

Question 4

Collecting ducts

Answer 4

• active reabsorption of water depending on body’s needs