Which of the following substances helps to concentrate urine?
Correct answer: B. ADH
- A. Aldosterone
- B. ADH
- C. Glucosterone
- D. Thyroxin
Explanation
Antidiuretic hormone (ADH)is a chemical produced in the brain that causes the kidneys to release less water, decreasing the amount of urine produced. If less urine is produced, then the content of the urine becomes more concentrated.
This question appeared on the NUMS 2020 paper, which you can sit online with every answer explained.
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About Kidney and Urinary System
The kidney and urinary system remove nitrogenous wastes, regulate water and ion balance, and help maintain blood pH through filtration, selective reabsorption and secretion. Questions cover nephron structure, ultrafiltration, the loop of Henle, collecting ducts, urine formation and the roles of ADH and aldosterone, while distinguishing excretion from egestion.
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