Question

Uric acid is the chief nitrogenous component of the excretory products of
A. Man
B. Earthworm
C. Cockroach
D. Frog

Answer 1

Hint: Excretion is the process of removing waste products and excess chemicals from the body's internal and exterior environments. A variety of metabolic wastes are created inside our cells, and if they are maintained in the body, they can be hazardous. It's critical to get rid of these metabolic wastes as soon as possible. Different excretory organs are found in different species.

Complete answer:
We can solve this question by analyzing each of the options.
Option:A – The most common excretory product of humans is urea, which is less harmful than ammonia. Ureotelism refers to animals that release urea as their primary metabolic waste.
So, Option:A is incorrect.
Option:B – Earthworms excrete urea and ammonia based on the availability of water and do note excrete uric acid.
So, Option:B is incorrect.
Option:C – Cockroaches produce uric acid as the chief excretory product of metabolism after converting ammonia into less toxic and insoluble uric acid.
So, Option:C is correct.
Option:D - A frog's liquid excreta consists of water mixed with ammonia, urea, or uric acid. However, the chief excretory products of frogs are ammonia and not uric acid.
So, Option:D is incorrect.

So, Option:C is the correct answer.

Note:
The excretion of excess nitrogen in the form of uric acid is known as uricotelism. Insects, birds, and most reptiles are uricotelic creatures. Ammonia is transformed in these animals into less toxic, relatively insoluble uric acid, which may be expelled with a modest amount of water. Despite needing more metabolic energy to produce than urea, uric acid's low toxicity and poor water solubility allow it to be concentrated into a tiny amount of pasty white suspension, as opposed to the watery urine of mammals.