Practicing Success
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CUET Preparation Today
With regard to kidneys and its functions, which of the following statements is NOT correct? |
They maintain water balance and expel metabolic waste. Reptiles have relatively more nephrons than birds. Each nephron has two parts – the glomerulus and the renal tubule Their basic functional units are called nephrons. |
Reptiles have relatively more nephrons than birds. |
The correct answer is Option (2) -Reptiles have relatively more nephrons than birds. The statement that is NOT correct regarding kidneys and their functions is:Reptiles have relatively more nephrons than birds. In fact, it is birds that generally have more nephrons compared to reptiles. Nephrons are the functional units of the kidneys responsible for filtering blood and producing urine. Birds, being endothermic animals, typically have higher metabolic rates and greater demands for maintaining water and electrolyte balance compared to most reptiles. To meet these demands, birds have evolved kidneys with a higher density of nephrons relative to their body size compared to many reptiles. This higher nephron density allows birds to efficiently regulate water and electrolyte balance, which is crucial for their survival in various habitats. Therefore, the statement suggesting that reptiles have relatively more nephrons than birds is not correct.
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