Nitrogenous Wastes & Excretion Patterns — NEET Biology
📚 Practice ConceptMany nitrogen containing substances, ions, CO2, water, etc., that accumulate in the body have to be eliminated. Nature of nitrogenous wastes formed and their excretion vary among animals, mainly depending on the habitat (availability of water). Ammonia, urea and uric acid are the major nitrogenous wastes excreted.
Match the following organs with their primary excretory contribution and the potential consequences of their impaired function: Column I: Organ A. Liver B. Kidneys C. Lungs D. Skin (Sweat glands) Column II: Primary Excretory Contribution i. Secretion of bile containing bilirubin, cholesterol, degraded steroid hormones ii. Elimination of nitrogenous wastes like urea and regulation of ionic/water balance iii. Removal of CO2 and water vapour iv. Excretion of NaCl, small amounts of urea, lactic acid Column III: Potential Accumulation if Function is Impaired p. Jaundice, accumulation of degraded steroid hormones q. Hypercapnia, respiratory acidosis r. Uremia, electrolyte imbalance, fluid overload s. Excessive body heat, accumulation of small amounts of urea and salts Choose the correct match:
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