Role of Lungs, Liver & Skin in Excretion — NEET Biology
📚 Practice ConceptOther than the kidneys, lungs, liver and skin also help in the elimination of excretory wastes.
Which of the following statements regarding excretory processes and organs are correct? S1: Lungs eliminate approximately 200 mL of CO2 per minute along with significant quantities of water. S2: The liver secretes bile containing bilirubin, biliverdin, cholesterol, and certain degraded hormones that pass out with digestive wastes. S3: Sweat glands, through their watery secretions, remove NaCl, small amounts of urea, and lactic acid. S4: Sebaceous glands eliminate sterols, hydrocarbons, and waxes as sebum, primarily providing a protective oily covering for the skin. S5: Kidneys play a significant role in the direct removal of ammonia in ammonotelic animals. S6: Uric acid is the most toxic nitrogenous waste and requires the largest amount of water for its elimination.
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