noun
ADJECTIVE
▪ complex
▪ simple
▪ individual , single
▪
There may be several hundred amino acids in a single protein ~.
▪ stable
▪ CO 2 , DNA , hydrogen , water , etc.
VERB + MOLECULE
▪ form
▪ attach , bind
MOLECULE + VERB
▪ combine
▪ be composed of sth , contain sth
▪ interact
PREPOSITION
▪ ~ of
▪
two ~s of hydrogen