- A ADH (vasopressin)
- B the hormone insulin
- C plain adrenaline
- D plain thyroxine
Correct answer: A. ADH (vasopressin)
Explanation: Antidiuretic hormone (ADH) increases water reabsorption, concentrating the urine.
Concept context
Nitrogenous waste, kidney structure, urine formation in the nephron, and hormonal regulation of excretion.
Read the full Excretory Products and their Elimination notes →