Q.
The amount of urea which is excreted out in the urine per day of an adult human is
1322
279
NTA AbhyasNTA Abhyas 2020Excretory Products and their Elimination
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Solution:
The animals must detoxify ammonia by converting it into a relatively nontoxic form such as urea or uric acid. Mammals, including humans, produce urea, whereas reptiles and many terrestrial invertebrates produce uric acid. An adult human excretes, on an average, 1 to 1.5 litres of urine per day. The urine formed is a light yellow coloured watery fluid which is slightly acidic (pH-6.0) and has a characterestic odour. On an average, 25-30 gm of urea is excreted out per day.