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ICSE Class X Biology 2018 Papers

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The diagram given below is that of a structure present in a human kidney. Study the same and answer the questions that follow:
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Question : 71 of 97
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Name the main nitrogenous waste in it. Mention the three main steps involved in the formation of the fluid mentioned in (iii) above.
Solution:  
Formation of the urine occurs in three steps are :
1. Ultrafiltration
2. Selective Reabsorption
3. Tubular Secretion
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