Harmful Microbes

Q.

Which of the following are air-borne diseases?

1. Malaria
2. Tuberculosis
3. Diphtheria
4. Cholera

Q.

Why does the female Anopheles mosquito feed on human blood?

Q. Which of the following diseases are transmitted by mosquitoes?

1. Yellow fever
2. Elephentiasis
3. Zika fever
4. Common cold

Q.

Conversion of milk into curd takes place by the action of __.

1. bacteria

2. fungus

3. virus

4. protozoa

Q.

Common cold is a/ an ____ borne disease.

Q. Pulse polio uses oral vaccine because it is:

1. Easy to administer
2. No other way it can be administrated
3. It has less viability inter-dermal
4. All of the above

Q.

Mosquitoes spread the disease:

1. Malaria

2. Dengue

3. Filaria

4. All of these

Q.

What is so dangerous about dengue virus?

1. There is danger of dengue at every change of weather

2. The dengue hemorrhagic fever and the shock syndrome

3. The dengue remains mysterious

4. There is no cure for dengue

Q. What is the difference between droplet infection and airborne infection ?

Q.

(a) How does bacteria become resistant to antibiotics?

(b) What is the use of penicillin?

Q. is a disease caused by viruses.

1. Dengue
2. Cholera
3. Anthrax
4. Tuberculosis

Q. The action of microorganisms takes place under___

1. humid conditions

2. appropriate temperature

3. none of the above

4. both a and b

Q. A solution containing weakened or dead microbes, used to stimulate antibodies production and to provide immunity against certain diseases is known as _________ .

1. vaccine
2. antibiotic
3. vitamin
4. antibody

Q. Microbes are usually killed at high temperature.

1. True
2. False

Q.

The action of microorganisms takes place under___

1. humid conditions

2. appropriate temperature

3. none of the above

4. both a and b

Q. Identify the given images and give the most appropriate title.

1. 
2. 
3. 
4. 

Q. Allergens are

1. Infectious and excessive secretions of IgE
2. Non-infectious and excessive secretions of IgE
3. Infectious and excessive secretions of IgG
4. Non-infectious and excessive secretions of IgM

Q.

(a) How does bacteria become resistant to antibiotics?

(b) What is the use of penicillin?

Q. Which of the following are the uses of Lactobacillus?

1. Production of leavened fodder
2. Provides rigidity to jute bags
3. Production of curd, cheese, cocoa
4. To treat abdominal discomfort

Q.

Highlight the way through which infectious disease generally spread in human communities.

Q. Sunil ate 'pani-puri' with his friends. He started getting stomach ache, diarrhoea, weakness and loss of appetite. He is likely to be suffering from which of the following disease?

1. Malaria
2. Tuberculosis
3. Typhoid
4. Ringworm

Q. Why are mangoes pickled in oil?

1. To enhance growth of bacteria.
2. To prevent bacterial growth.
3. To preserve them from spoilage.
4. To increase nutritional value.

Q. Good microbes prevent the growth of harmful bacteria in our body.

1. False
2. True

Q. Select the diseases caused by bacteria.

1. Typhoid
2. Tetanus
3. Cholera
4. Tuberculosis
5. Anthrax
6. Influenza
7. Malaria
8. Common Cold
9. AIDS