The main nitrogenous excretory product of humans is:
Correct answer: B. Urea
- A. Ammonia
- B. Urea
- C. Ammonium
- D. Uric acid
Explanation
In humans, nitrogenous waste from protein metabolism is converted primarily into urea in the liver via the urea cycle. Urea is less toxic than ammonia and is excreted in urine by the kidneys
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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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