CELL TYPE CYTOPLASMIC FEATURES CELL WALL FEATURES 3-D GEOMETRY

Parenchyma

Nucleus 
Vacuolated 
Mitochondria 
Chloroplasts 
Primary cell wall uniformally thin or uniformally thick with primary pit fields
In secondary xylem:  Uniformly thick, lignified secondary wall with simple pits.

 
Transverse Polygonal
Longitudinal  Elongated with tapering ends or less elongated prismatic