HELP ! 50 POINTS !
A). 3 is the nucleus; 5 is a ribosome
B). 1 is the rough endoplasmic reticulum: 2 is a chloroplast
C).4 is a ribosome; 1 is the smooth endoplasmic reticulum
D).2 is a mitochondrion: 6 is a Golgi apparatus (Golgi body)
