Question

Chloragogen cells are found in-
A. Blood of earthworm
B. Blood of cockroach
C. The coelomic fluid of the earthworm
D. The body wall of Leucosolenia

Answer 1

Hint: They are also called ‘y' cells. These cells are present in annelids.

Complete answer:
Chloragogen cells are star-shaped cells derived from the inner coelomic epithelium and they have excretory functions. These are most commonly found in the coelomic fluid of the earthworms. Their function is similar to the liver in vertebrates. They help in the conversion of glucose into glycogen and the storage of glycogen and neutralize the toxins. They also play an important role in the excretion of harmful substances and the synthesis of urea. They bring about the deamination of amino acids. They are yellowish in color due to the presence of yellow granules called chloragosomes.

Additional information: Annelids are also known as the ringed worms or segmented worms. It is a large phylum, with over 22,000 species including ragworms, earthworms, and leeches. The species are adapted to a variety of diverse environmental conditions like – tidal zones in the sea, hydrothermal vents, freshwater bodies, and moist terrestrial environments.

So, the correct answer is ‘coelomic fluid of earthworm'.

Note: An earthworm is a terrestrial invertebrate that belongs to the class Clitellata, order Oligochaete, and phylum Annelida. They exhibit a tube-within-a-tube body plan. They are externally segmented with corresponding internal segmentation. They have Nephridium as their main excretory organ.