energid vs protoplast

energid and protoplast both are nouns.

Word	Noun	Adjective	Verb	Adverb
energid	Yes	No	No	No
protoplast	Yes	No	No	No

As nouns, energid and protoplast are synonyms defined as:

energid and protoplast: a biological unit consisting of a nucleus and the body of cytoplasm with which it interacts

energid (noun)	protoplast (noun)
a biological unit consisting of a nucleus and the body of cytoplasm with which it interacts	a biological unit consisting of a nucleus and the body of cytoplasm with which it interacts