The following is an antibiotic

Which of these do not have a regular cell structure?

Cocci are __________ shaped bacteria.

This bacterium promotes the formation of milk into curd:

Which is not a communicable disease?

Identify protozoan from the list of microorganisms given: Rhizopus, Rhizobium, Penicillium, Amoeba

Give example of a disease that can spread through direct contact with infected person.

Should antibiotics be used in cold and flu? Give reason for your answer

What is the basis of the use of yeast in the baking industry?

Why are vaccines so important for children?

What are antibiotics? What precautions must be taken while taking antibiotics?

While returning from the school, Boojho ate chaat from a street hawker. When he reached home, he felt ill and complained of stomach ache and fell ill. What could be the reason?

Packed milk bought from the market does not get spoiled. Justify with appropriate reason

Why are salt and edible oils also called preservatives? Name two chemicals that are used as common preservatives.

We often see large amount of dead organic matter in the form of decaying matter. Where does it disappear after sometime?

Give causative microorganism, mode of transmission and one preventive measure Qf human diseases like Polio, Cholera and Hepatitis-B.

Write a short paragraph on the diseases caused by micro-organisms.

What do you understand by food preservation?
Explain any four methods of food preservation.

Explain the use of Bacteria, Fungi and Algae.