History of Microbiology Questions and Answers Pdf - 1

Question: 1

A culture medium the exact composition of which is not known was called as

(A) Natural

(B) Simple

(C) Complex

(D) Defined

Question: 2

Which of the following method of sterilization has no effect on spores?

(A) Drying

(B) Autoclave

(C) Hot air oven

(D) None of these

Question: 3

Lysozyme is effective against

(A) Protozoa

(B) Helminthes

(C) Gram negative bacteria

(D) Gram positive bacteria

Question: 4

This is an agar plate method and is commonly used for estimation of the number of bacteria in milk

(A) Roll tube method

(B) Lawn culture

(C) Spread plate

(D) Standard Plate Count (SPC)

Question: 5

To transfer cultures from one place to another, the device used is

(A) Autoclave

(B) Slant

(C) Needle

(D) Inoculation loop