In a diagram showing the nephron. What is the major role of the part labelled H?
Correct answer: C. Maintenance of osmotic gradient
- A. Filtration of blood
- B. Active secretion of urea
- C. Maintenance of osmotic gradient
- D. Conversion of ammonia to urea
Explanation
The Loop of Henle creates an osmotic gradient to concentrate urine.
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About Homeostasis
Homeostasis maintains a stable internal environment through the kidney and urinary system, thermoregulation and excretion. The kidney topics include filtration, selective reabsorption, urine formation and water balance, while thermoregulation involves sweating, vasodilation, vasoconstriction and hormonal control; excretion is different from egestion, which removes undigested food.
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