(a) Cell inclusions: They are considered to be the non-living components of the cell that do not possess metabolic activity and are not bounded by membranes.
(b) Cytosol: It refers to the soluble part of cytoplasm that contains protein fibres and is located between the cell organelles.
(c) Protoplasm: It is the living content of the cell that is surrounded by the plasma membrane.
(d) Nucleoplasm: It is the ground substance of the nucleus enclosed by a nuclear envelope.