Lab 6 Flashcards
0
Q
What does a negative stained bacteria look like
A
Bacteria appears clear against Gray background
1
Q
Define negative stain
A
Stains the background
2
Q
What is considered a colloidal stain
A
India ink or eosin
3
Q
What stain did we use
A
Nigrosin
4
Q
Do you heat fix in a negative stain ? And why
A
No. Less distortion so it shows morphology and size
5
Q
What are cocci bacilli
A
Short, oval bacilli
6
Q
What bacteria did we use in this lab
A
B. Subtilus
S. Epidermidis
7
Q
Describe the procedure of a negative stain
A
Please drop of Nickerson near one end of slide. Mix new full of broth culture in drop. Draw slide across surface like blood sample. Let smear air dry.
