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MDCAT Biology QUESTION #4265
Question 1
Kidneys perform their osmoregulatory role under the effect of Antidiuretic Hormone (ADH). Which type of urine is produced?
  • Hypotonic urine with decreased volume
  • Hypotonic urine with increased volume
  • Hypertonic urine with decreased volume✔️
  • Hypertonic urine with increased volume
Correct Answer Explanation
ADH increases water reabsorption in the collecting ducts, resulting in concentrated (hypertonic) urine with decreased volume.