Highly toxic nitrogenous excretory products are:
Correct answer: D. Ammonia
- A. CO2
- B. Uric Acid
- C. Urea
- D. Ammonia
Explanation
The table above shows that ammonia requires the highest percentage of water for excretion, which shows that ammonia contains the highest percentage of nitrogen. Ammonia is a highly toxic nitrogenous excretory product that is produced in the breakdown of proteins and amino acids. It must be excreted rapidly to avoid toxicity.
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About Excretion
Excretion removes metabolic wastes such as carbon dioxide, urea and excess salts, and differs from egestion, which removes undigested food. Questions cover kidney structure, nephron ultrafiltration, selective reabsorption and urine formation, along with the excretory roles of the lungs, skin and liver in maintaining homeostasis.
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