2.

Question 1

How do we see bacteria?

Answer 1

We have to make slides

Question 2

What is a bacterial smear?

Answer 2

• Thinly spread bacteria on a slide.

Question 3

Staining is when?

Answer 3

we dye the bacteria so that it can be seen against a background

Question 4

What is the charge of staind

Answer 4

Stains are usually positively charged dyes that are attracted to the negatively charged nucleic acid and cell wall

Question 5

What are the common basic stains?

Answer 5

include methylene blue, crystal violet, and carbol fuchsin

Question 6

The steps of slides

Answer 6

1) First, we spread thinly spread some bacteria on a slide
This is called a bacterial smear

2) Then, we dye the bacteria so that it can be seen against a background
This is called staining
Stains are usually positively charged dyes that are attracted to the negatively charged nucleic acid and cell wall
Common basic stains include methylene blue, crystal violet, and carbol fuchsin

Question 7

uses one color to help us see bacteria against the background

Answer 7

simple staining

Question 8

help to identify and differentiate different types of bacteria

Answer 8

dfferentrial stain

Question 9

What are the 5 differentrial stains

Answer 9

-Gram stains are a type of differential stain
-Negative Staining
-Acid-Fast Staining
-Endospore Staining

Question 10

Bacteria have a thick cell wall made of the

Answer 10

polysaccharide peptidoglycan

Question 11

Gram-positive bacteria color and cell wall

Answer 11

• purple
  -Thick cell wall

Question 12

Gram-negative bacteria color and cell wall

Answer 12

Pink and thin cell wall