Question:
Study the following statements regarding excretion in cockroach:
I. The distal portion of the Malpighian tubule is secretory in function.
II. Storage excretion is carried out by the fat bodies.
III. Uric acid is discharged during copulation from the uricose glands.
IV. Cuticle has no role in excretion.
Study the following statements regarding excretion in cockroach:
I. The distal portion of the Malpighian tubule is secretory in function.
II. Storage excretion is carried out by the fat bodies.
III. Uric acid is discharged during copulation from the uricose glands.
IV. Cuticle has no role in excretion.
Show Hint
Malpighian tubules are the primary excretory organs; fat bodies and uricose glands serve specialized functions.
Updated On: Jun 10, 2026
- I and II
- II and III
- I, II and III
- II, III and IV
Show Solution
Verified By Collegedunia
The Correct Option is C
Solution and Explanation
Step 1: Concept
Excretory mechanisms in insects (cockroach).
Step 2: Analysis
* Statement I is correct: Malpighian tubules perform secretion in the distal portion. * Statement II is correct: Fat bodies are indeed involved in storage excretion. * Statement III is correct: Uricose glands in male cockroaches store and release uric acid during copulation. * Statement IV is incorrect: In some insects, molting (shedding the cuticle) is a form of excretion, as waste products are incorporated into the cuticle.
Step 3: Conclusion
Statements I, II, and III are correct.
Final Answer: (C)
Excretory mechanisms in insects (cockroach).
Step 2: Analysis
* Statement I is correct: Malpighian tubules perform secretion in the distal portion. * Statement II is correct: Fat bodies are indeed involved in storage excretion. * Statement III is correct: Uricose glands in male cockroaches store and release uric acid during copulation. * Statement IV is incorrect: In some insects, molting (shedding the cuticle) is a form of excretion, as waste products are incorporated into the cuticle.
Step 3: Conclusion
Statements I, II, and III are correct.
Final Answer: (C)
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