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Question
The body cells in cockroach discharge their nitrogenous waste in the hemolymph, mainly in the form of:
The body cells in cockroach discharge their nitrogenous waste in the hemolymph, mainly in the form of:
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Solution
The correct option is C Potassium urate
Insects including cockroaches, excrete nitrogenous waste in the form of soluble potassium urate which is liberated into the hemolymph and taken up by the cells lining the Malpighian tubules. The tubules facilitate the absorption of urate by stirring up the blood. In the cells of the tubules, the potassium urate reacts with water and carbon dioxide (from respiration) to form potassium hydrogen carbonate and uric acid. The former is absorbed back into the blood, but the later is excreted.
Insects including cockroaches, excrete nitrogenous waste in the form of soluble potassium urate which is liberated into the hemolymph and taken up by the cells lining the Malpighian tubules. The tubules facilitate the absorption of urate by stirring up the blood. In the cells of the tubules, the potassium urate reacts with water and carbon dioxide (from respiration) to form potassium hydrogen carbonate and uric acid. The former is absorbed back into the blood, but the later is excreted.
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