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In cockroach, excretion is brought about by- A. Phallic gland B. Urecose gland C. Nephrocytes D. Fat body E. Collaterial glands Choose the correct answer from the options given below:
Phallic gland (A) and Collaterial glands (E) are reproductive structures! Excretion in cockroach is carried out by Malpighian tubules along with Urecose glands (B), Nephrocytes (C), and Fat body (D)! Match Option (4) B, C and D only!
In cockroach, nitrogenous waste is extracted from haemolymph as potassium urate and converted to uric acid. While the primary excretory organs are Malpighian tubules, accessory excretory structures include:
NCERT states under Cockroach Excretion: "In addition, the fat body, nephrocytes and urecose glands also help in excretion."
Phallic gland (conglobate gland) is an accessory gland of the male reproductive system located near the ejaculatory duct. Collaterial glands are branched glands of the female reproductive system that secrete the scleroprotein hardening the ootheca.
Diagnose every choice: Know exactly why the right option works and why distractors fail.
Incomplete: nephrocytes (C) also definitively function in excretion.
Both phallic gland (A) and collaterial glands (E) are reproductive structures.
Includes reproductive glands A and E.
Verbatim NCERT trio: Urecose gland, nephrocytes, and fat body assist excretion in cockroach.
Cockroaches have numerous glands ending in "-ic" or "-ial" (phallic, collaterial, urecose, mushroom). Grouping them without noting function leads to errors.
"In addition to Malpighian tubules, the fat body, nephrocytes and urecose glands also help in excretion."
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