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A fixative _______________ the macromolecular components of a cell.

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A fixative _______________ the macromolecular components of a cell.

(a) degrades

(b) immobilizes

(c) penetrates

(d) granulates

The question was posed to me during an internship interview.

I'd like to ask this question from Techniques topic in portion Techniques in Cell Biology of Cell Biology

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The correct option is (b) immobilizes

The explanation is: A fixative is used for the preparation of a section – a thin slice of the original organelle retaining all the organelles. A fixative is used for the preparation of the sections; by penetrating the cell membranes fixatives immobilize the macromolecular components.

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