Cell inclusions are considered various nutrients (glycogen, lipids) or pigments (melanin, lipofuscin, and hemosiderin) that can be found within the cell, but do not have activity like other organelles.
Glycocalyx is a glycoprotein and glycolipid covering that surrounds the cell membranes of some bacteria, epithelia, and other cells and acts as an identifier. In bacteria, it is found in two forms: (i) Slime layer, (ii) Capsule.