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- #Structural Organisation in Animals and Plants
- #Class 11
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- #Biology
The Malpighian tubules of the cockroach excrete
Option: 1
Urea
Option: 2
Uric acid
Option: 3
Ammonia
Option: 4
Guanine
Answers (1)
Respiratory System and Excretory System of Cockroach
Excretory system
- Cockroach is uricotelic i.e. it excretes uric acid.
- The process of excretion occurs through Malpighian tubules, fat body, nephrocytes and uricose glands or mushroom glands.
- At the junction of midgut and hindgut, a ring of 100-150 yellow-colored thin filamentous Malpighian tubules are present.
- Each Malpighian tubule is lined by glandular and ciliated cells.
- These absorb waste and convert it into uric acid which is excreted out through the hindgut.
- Cockroach is uricotelic i.e. it excretes uric acid.
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