Match the Errors in Staining with the Appropriate Description

question 20

Multiple Choice

Match the errors in staining with the appropriate description.
-overstaining,inadequate washing,or using too thick a film

• A)if the pH of the staining system is too alkaline, the parts of the cells taking up basic dye will be overstained, giving an overall blue effect, with very dark blue to black nuclear chromatin and bluish RBCs
• B)parts of the cell taking up acidic dye will be overstained and will appear too red, while the parts of the cells taking up basic dye will appear pale
• C)an excessively blue appearance on gross examination
• D)improper washing (not washing enough to remove the metallic scum)

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Definitions:

Tertiary Amine

A nitrogen-containing compound where the nitrogen atom is bonded to three carbon atoms, often used as a base or catalyst in organic synthesis.

Alkaloid

A group of naturally occurring chemical compounds that mostly contain basic nitrogen atoms, found in plants and are often used for their medicinal properties.

Anticancer Agent

A substance that inhibits or prevents the growth of cancer cells, often used in chemotherapy and medical treatment of cancer.

J. Med. Chem.

Short for Journal of Medicinal Chemistry, a scientific journal publishing research on the design and chemical properties of therapeutic agents.