Page 51 - MNUmicrobiology practical 2025

General Microbiology & Immunology (PM 401) second level Semester 4 2024/2025

Choose the best correct answer in the following statements:

1- Colorization of the bacteria with one dye solution to visualize it is called
…………..
a. Wet mount

b. Simple stain
c. Differential stain

d. Structural stain

2- The part of the bacterial cell that the basic dye stain in a simple stain
procedure is ……………

a. Cell wall
b. Cytoplasm
c. Flagella

d. Endospores

3- After staining the bacterial cell with safranin it appeared…….

a. Yellow
b. Red
c. Green

d. Purple

4- Which of the following is not a simple stain ……..
a. Methylene blue

b. Iodine
c. Safranin

d. Crystal violet

General Microbiology & Immunology (PM 401) Practical note Page 40