Chapter 2 -Microorganisms : Friend and Foe

The host for malaria causing protozoan is:

The bread or dosa dough rises because of the action of:

Malaria is spread by:

Protozoan shaped like a slipper is:

The bacterium that turns milk into curd is:

The bacteria was Írst observed by:

Virus reproduce:

Which of the following lives alone:

The process of conversion of sugar into alcohol is known as:

In Pasteurisation the milk is heated to about:

The bacterium living in the root nodules of leguminous plants is:

Atmospheric nitrogen ¡s used for the synthesis of:

The percentage of nitogen in the atmosphere:

Which of the folidwing is a preservative:

Hepatitis-A is transmitted through:

Communicable diseases are spread from an infected person to a healthy person through:

A group of micro organisms that have the characters of both living and non-living are:

is the process by which alcohol and Co are produced by yeast cells.

Cause of malaria is:

The algae commonly used as fertilisers are called:

Which of the following drug is an antibiotic?

Leprosy is caused by:

The cause of whooping cough is

Virus is.

Tuberculosis is a disease caused by:

BCG vaccine is used to curb:

Cholera is due to:

Which of the following is air-borne disease:

Breathing in polluted air causes:

Yeast helps in the production of: