Which one of the following is the main nitrogenous waste product in humans?
Correct answer: C. Urea
- A. Ammonia
- B. Uric acid
- C. Urea
- D. Creatinine
Explanation
Urea is the main nitrogenous waste in human, excreted in urine after protein metabolism.
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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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