In what form do the terrestrial reptiles excrete their nitrogenous wastes? How is this kind of excretion advantageous to the land vertebrates which lay shelled eggs?
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Ureotelic animals, which includes mammals, produce urea as the main nitrogenous waste material.2 NH3 + CO2 + 3 ATP + H2O → H2N-CO-NH2 + 2 ADP + 4 Pi + AMP is the chemical reaction by which toxic ammonia is converted to urea.The urea cycle involves the multi-step conversion (carried out by five different enzymes ) of the amino acid L- ornithine into different intermediates before being regenerated.
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The terrestrial reptiles excrete waste in the form of the URIC ACID.
Explanation:
In this process ammonia is converted to uric acid and then excreted from the body. The uric acid is not toxic in nature and do not need any water at all for the excretion as the urea needs water for the excretion process. So they excrete solid as a waste and conserve water in their body.
This is very advantageous process as the vertebrates no need to move for water so they can excrete as a solid in the form of uric acid.
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