CHAPTER 3: STAINS AND STAINING METHODS Flashcards
1
Q
- – coloring agent used for general purposes
A
Dye
2
Q
dye used for biological purposes (specific
A
Stain
3
Q
derived from coal tar
rendered synthetically to become a stain
A
aniline dyes
4
Q
Colorless organic compound that can bind to the nitro
group of chromophores
A
Benzene
5
Q
Chemical groups with conjugated double bonds,
imparts color to the colorless benzene.
A
Chromophore
6
Q
Groups that intensify the color of chromophore by
conveying the property of ionization to the chromogen
and enabling it to form salts and binding to the
biological substance
A
Auxochrome
7
Q
as “an organic compound
containing both chromophores and auxochrome link to the
benzene.”
A
stain
8
Q
Natural stain example
A
▪ Example: hematoxylin, carmine
9
Q
safranin stin example
A
▪ safranin, methylene blue, crystal violet, etc.
10
Q
Direct stain example
A
▪ Ex. Aniline dyes
11
Q
A
