nitrogenous waste

the waste nitrogen produced during METABOLISM. Initially this is often in the form of AMINO ACIDS, but few animals can excrete these directly. Many invertebrates and aquatic vertebrates eliminate nitrogen as ammonia, but this would be toxic if excess water were not available. Marine teleost fish excrete TRIMETHYLAMINE OXIDE, which is nontoxic and requires little water for elimination. Mammals, turtles and amphibians excrete UREA, and land reptiles, snails, insects and birds excrete URIC ACID from which water is removed before voiding it.

单词	nitrogenous waste
释义	DictionarySeeurine nitrogenous waste nitrogenous waste the waste nitrogen produced during METABOLISM. Initially this is often in the form of AMINO ACIDS, but few animals can excrete these directly. Many invertebrates and aquatic vertebrates eliminate nitrogen as ammonia, but this would be toxic if excess water were not available. Marine teleost fish excrete TRIMETHYLAMINE OXIDE, which is nontoxic and requires little water for elimination. Mammals, turtles and amphibians excrete UREA, and land reptiles, snails, insects and birds excrete URIC ACID from which water is removed before voiding it.
随便看	gangliated trunks ganglia thoracalia ganglia thoracica ganglia thoracica [na] ganglia trunci sympathici gangliectomies gangliectomy ganglier gangliest gangliform gangliitis ganglily gangling ganglingly ganglio- ganglioblast gangliocyte gangliocytic paraganglioma gangliocytoma ganglioform ganglioglioma ganglioglioneuroma ganglioid gangliolysis ganglioma