Question

Which one has nothing to do with nitrogeneous
excretion?
(a) Skin (b) Kidneys
(c) Liver (d) Lungs

Answer 1

Answer:

(d) Lungs is the correct answer

Answer 2

Lungs have nothing to do with nitrogenous excretion.

* The nitrogenous wastes formed in the body leads to the production of ammonia which is toxic and thereby need to be excreted.

* It is excreted as urea by mammals or humans, uric acid by reptiles and birds, and as powder by uricothelic organisms.

* The urea gets formed in the liver which is then excreted through urine.

* The skin also participates in excretion by giving out sweat.