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Find out correct statements - <bt>(A)Mam...

Find out correct statements - (A)Mammals, amphibia, freshwater fishes are ureotelic.
(B) Waste product of bird and insect is same.
(C) Fish eliminate ammonia through gill surfaces as `NH_(4)^(+)`
(D) Uric acid is most toxic form and requires large amount of water for its elimination.
(E) Excretory structures of most insects are malpighian tubules.

A

A, B, E

B

A, B, C, E

C

B, C, E

D

All statement are correct

Text Solution

AI Generated Solution

The correct Answer is:
To determine which statements are correct, we will analyze each statement one by one. ### Step-by-Step Solution: 1. **Statement A**: "Mammals, amphibia, freshwater fishes are ureotelic." - **Analysis**: This statement is correct. Ureotelic organisms excrete urea as their primary nitrogenous waste. Mammals, amphibians, and freshwater fishes fall into this category. - **Conclusion**: True 2. **Statement B**: "Waste product of bird and insect is same." - **Analysis**: This statement is also correct. Both birds and insects primarily excrete uric acid as their nitrogenous waste, which is less toxic and conserves water. - **Conclusion**: True 3. **Statement C**: "Fish eliminate ammonia through gill surfaces as `NH4+`." - **Analysis**: This statement is correct. Many bony fishes excrete ammonia directly into the water through their gills, often in the form of ammonium ions (NH4+). - **Conclusion**: True 4. **Statement D**: "Uric acid is most toxic form and requires large amount of water for its elimination." - **Analysis**: This statement is incorrect. Uric acid is actually less toxic than ammonia and requires less water for its elimination. Ammonia is the most toxic nitrogenous waste and requires a large amount of water to be safely excreted. - **Conclusion**: False 5. **Statement E**: "Excretory structures of most insects are malpighian tubules." - **Analysis**: This statement is correct. Most insects do have Malpighian tubules, which are responsible for excreting nitrogenous wastes. - **Conclusion**: True ### Final Summary of Correct Statements: The correct statements are A, B, C, and E.
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