Question: 172 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:
(1) B, C and D only
(2) B and D only
(3) A and E only
(4) A, B and E only
Answer: Option (1)
Explanation:
In cockroach, excretion is carried out by multiple structures.
Urecose glands present in the fat body help in excretion by storing nitrogenous wastes.
Nephrocytes are specialized cells that filter and remove waste materials from the haemolymph.
The fat body also plays an important role in excretion by storing and detoxifying metabolic wastes.
Phallic glands and collateral glands are accessory reproductive glands and do not participate in excretion.
Therefore, excretion in cockroach is brought about by urecose glands, nephrocytes and fat body.