What is the most toxic primary nitrogenous waste?
A)ammonia
B)uric acid
C)urea
D)urine

Question

Quizplus · Accepted Answer

Ammonia is the most toxic primary nitrogenous waste because it is highly soluble in water and can easily penetrate biological membranes, causing cellular damage and death. Fish, in particular, excrete ammonia as their primary nitrogenous waste because it is very water-soluble and can easily diffuse out of their gills into the surrounding water. However, most terrestrial organisms, including humans, convert ammonia into less toxic forms such as urea or uric acid for excretion.

What Is the Most Toxic Primary Nitrogenous Waste