Question

Are Molluscs Uricotelic?

Answer 1

Hint: Different organisms have many different strategies of disposing their excretory wastes and the wastes are removed in different varieties like ammonia (Ammonotelic), urea (Ureotelic), uric acid (Uricotelic), and amino acids (Aminotelic).

Complete answer:
Different nitrogenous wastes are removed as a result of deamination which is the procedure of removal of amino agencies from the amino acids that make up proteins. These amino groups after elimination are converted into urea, uric acid, ammonia on the groundwork of physiology of organisms and the availability of water in their body. The element of amino acid left after the removal of the amino group is oxidized to produce energy or is saved as reserve food.

The mollusc are the group of organisms which possess soft bodies and have head and foot. The body is covered with a hard exoskeleton which is made up of chitin. The excretory organ of these organisms is a tube-like structure called nephridia which functions like a kidney. It filters the waste from internal body fluids and removes it through the shell. The molluscs are mostly aquatic and excrete nitrogen in the form of ammonia. The octopus excrete nitrogen in the form of ammonium chloride. The snails excrete ammonia in the moist environment.

So, the molluscs are ammonotelic, that is they excrete the waste in the form of ammonia.

Note: Organisms that are determined and live in dry areas with scarcity of water like in the deserts, the place their bodies want to preserve water are uricotelic. Uric acid is produced and synthesized by animals which are discovered in deserts because uric acid is insoluble in water and does now not require water for its removal like urea which is shaped from ammonia in general in the liver and to an extent in the kidneys. Lizards, reptiles, birds, and kangaroo rats are uricotelic.