outer membrane

inner membrane

intermembrane space

matrix

thin walls, may intercellular spaces and no chloroplasts

thick walls, no intercellular spaces and large number of chloroplasts

thin walls, no intercellular spaces and several chloroplasts

thick walls, many intercellular spaces and few chloroplasts.

satellites

secondary constrictions

kinetochores

centromeres.

neem

China rose

Alstonia.