Question:
In an experiment, Malpighian tubules of a cockroach are removed. Which substance might be absent in its fecal pellets?
In an experiment, Malpighian tubules of a cockroach are removed. Which substance might be absent in its fecal pellets?
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Cockroaches are uricotelic, meaning they excrete nitrogenous waste as solid uric acid to conserve water.
Updated On: Mar 11, 2025
- Undigested matter
- Urea
- Uric acid
- Undigested proteins
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The Correct Option is C
Solution and Explanation
Step 1: Understanding the Role of Malpighian Tubules
- Malpighian tubules in cockroaches function in excretion and produce uric acid as a nitrogenous waste.
- Removing them prevents uric acid excretion, so it would be absent in feces.
- Other substances like undigested matter and proteins remain unaffected.
- Malpighian tubules in cockroaches function in excretion and produce uric acid as a nitrogenous waste.
- Removing them prevents uric acid excretion, so it would be absent in feces.
- Other substances like undigested matter and proteins remain unaffected.
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