metabolism vs organism

metabolism and organism both are nouns.

Word	Noun	Adjective	Verb	Adverb
metabolism	Yes	No	No	No
organism	Yes	No	No	No

metabolism (noun)	organism (noun)
the organic processes (in a cell or organism) that are necessary for life	a living thing that has (or can develop) the ability to act or function independently
the marked and rapid transformation of a larva into an adult that occurs in some animals	a system considered analogous in structure or function to a living body