A healthy adult human excretes (on an average) ______ gm of urea/day.
Which of the following statements regarding the normal characteristics and composition of human urine are NOT correct? S1: Normal human urine is slightly alkaline, with an average pH of 7.4. S2: Under normal conditions, healthy urine contains only urea, uric acid, and water. S3: The presence of sodium ions in urine is always a pathological sign, indicating severe renal dysfunction. S4: A healthy adult typically excretes about 1 to 1.5 litres of urine per day. S5: Kidneys play a significant role in the removal of ammonia in ammonotelic animals.
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