MCQs Mock Test for Lab Technicians and Technologists: Chapter 63

A gram positive organism which produces swarming on culture medium is

Cultures are prepared by penetrating the inoculation loop with suspension into the medium, they are

A common laboratory method of cultivating anaerobic micro-organisms is

Agar is obtained form

Spores are killed by

The bacterial culture prepared by pure culture is

Non-lactose fermenting colonies seen on Mac Conkey’s medium are

Factors on which disinfectivity of a disinfectant depends

The sterilizing agent is

In autoclave, the principle involved is

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

Shigella was first isolated by

For effective sterilization in an autoclave the temperature obtained is

Growth period of the culture is

Kauffmann white scheme is used to detect

Glassware are sterilized by

Blood agar medium is

Example of Anaerobic medium is

The principle involved in the streak plate method is

Temperature used for hot air oven is

Salts of heavy metals used as disinfectants are

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

Best method for getting pure culture is

Infrared radiation is a method of sterilization by

Lyophilization means

Accridine dyes are more effective against

Spores of actinomycetes are very sensitive, killed at room temperature of

Enhancement of virulence in bacteria is known as

Example for indicator medium is

Phenol co-efficient indicates

Culture media for fungi are

By pasteurization

In the medium other than nutrients, if any substance is used in excess, that medium is

Isolation is

The spores of th bacteria which can withstand the moist heat effect also

Which of the following are gas producing Salmonella?

The term that is used for the bacteria which can withstand pasteurization but does not grow at higher temperatures

The condition required for autoclave

The temperature required for pasteurization is

At the temperature 160^oC for one hour, complete sterilization occurs in

Spores of actinomycetes are very sensitive, killed at room temperature of

Tyndallisation was proposed by

Laboratory diagnosis of enteric fever is based on

Separation of a single colony is

The micro-organisms grow at high salinity are

Wilson and Blair medium is used for isolation of

Lysozyme is effective against

Viruses can be cultivated in

Alkaliphiles grow at pH value between

Aldehydes, which are most powerful disinfectants