Fixatives alter tissue by
Stabilizing the proteins so that it is resistant to further changes
Fixatives change soluble contents of the cell into insoluble substances so:
Substances are not lost during the subsequent processing steps.
When the protein molecule unfold and the internal bonds become disrupted is called
Denaturation
Additive fixation process:
Disruption enables the protein to combine chemically with a fixative molecule, and the protein then becomes insoluble