Answer:
Cell potency is referred to as the ability of cells to give rise to give rise to different or number of cell types. More the potency of cell more well it could differentiate into different types of cells. Cell potency is of three basic types; multi-potent, totipotent, pluripotent.
Totipotent cells can be differentiated into any types of cells including embryonic and non-embryonic cells like placenta.
e.g. zygote
Pluripotent cells can differentiate to any type of cells but not the placenta cells.
e.g. embryonic stem cells