Question

Excretory product of Cockroach.

Answer 1

Hint: Uricotelic species include reptiles, birds, ground snails, and insects such as cockroaches, which excrete nitrogenous wastes as uric acid in the form of pellets or paste with minimal water loss. The key components of cockroach and other insect excreta are urea and uric acid.

Complete solution:
Deamination causes a uricotelic organism to excrete uric acid or its salts. Uric acid is the least toxic and least soluble in water of the three main sources of nitrogenous waste excretion in animals (the two being ammonotelic and ureotelic). Excreta from uricotelic species are usually white and pasty. Terrestrial arthropods (including insects), lizards, reptiles, and birds are among them.
Cockroaches have Malpighian tubules, which draw wastes from their internal liquids; the liquids return to circulation, and the wastes are excreted in solid or semi-solid form, with excess nitrogen. Cockroaches, on the other hand, are not the only ones that have Malpighian tubules.
Cockroaches and other species have Malpighian tubules as excretory glands. The most common excretory organs in earthworms are nephridia. The excretory organs of platyhelminthes are flame cells. A gizzard is found in the feeding tube of certain insects, which aids in the breaking down of food particles.

Note:
Before leaving the insect's body, the primary urine ejected from the Malpighian tubules must travel into the rectum, where its structure is significantly altered. As a result, the insect excretory system consists of the Malpighian tubules and the rectum working together. In insects, metabolic waste is excreted by a mechanism containing Malpighian tubules. Metabolic waste diffuses through the tubule, which transports the waste to the intestines. The metabolic waste, along with feces, is then expelled from the body.