Which of the following is an additive fixative?

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Multiple Choice

Which of the following is an additive fixative?

Explanation:
Additive fixatives stabilize tissue by forming chemical bonds that become part of the tissue itself. Formalin fixes by creating methylene bridges between protein molecules, effectively cross-linking and embedding itself in the tissue to preserve structure. In contrast, alcohol, acetone, and acetic acid mainly denature or precipitate proteins and dehydrate tissue (coagulative action) without forming these cross-links, so they’re not considered additive fixatives.

Additive fixatives stabilize tissue by forming chemical bonds that become part of the tissue itself. Formalin fixes by creating methylene bridges between protein molecules, effectively cross-linking and embedding itself in the tissue to preserve structure. In contrast, alcohol, acetone, and acetic acid mainly denature or precipitate proteins and dehydrate tissue (coagulative action) without forming these cross-links, so they’re not considered additive fixatives.

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