Stains

Question 1

Feulgen Stain:

1. Dyes a nuclei what color(s)
2. This stain is specfiic for []

Answer 1

1. Red/violet
2. Deoxyribonucleic acid (DNA)

Question 2

Hemotoxylin and Eosin (H&E)

1. This dyes nuclei and other basophilic structures a deep [] color
2. While dying cytoplasm and other acidophilic structures a [] or [] color

Answer 2

• Blue
• Pink/rose

Question 3

Osmium Tetroxide:

1. Stains lipid in this color []
2. Stains Golgi Apparatus this color []
3. Stain myelin this color []

Answer 3

1. Black
2. Black
3. Black

Question 4

Periodic Acid-Schiff (PAS)

1. Glycogen, starch, cellulose, mucin, throid colloid, carilage matrix chitins, fibrin, collagen are all stained []
   
   1. Everything is “kinda” related to glycogen

Answer 4

Rose to Purplish-red

Question 5

Phosphotungstic Acid Hematoxylin (PTAH)

1. Stains mitochondria, nuclei, centrioles this color….

Answer 5

Blue