As the plant develops the fate of the proplastid will depend on the location of the cell and the environment it is exposed to (they will only become chloroplasts if exposed to light).
(the plant; develops; ) (it; is exposed; to) (they; will only become; chloroplasts) Context(they will only become,List([127, 148))):(the fate of the proplastid; will depend; on the location of the cell and the environment)
they will only become,List([127, 148))
the plant it they the fate of the proplastid
develops is exposed will only become will depend
to
chloroplasts
on the location of the cell and the environment