MCQ & Online Test – Why Do We Fall Ill? – NCERT Class 9 Science Chapter 13

Online Test | MCQ Why Do We Fall Ill? | NCERT Class 9 Science Chapter 13 | CBSE Syllabus

Every student of class 9 of NCERT/CBSE syllabus may take part this online test of NCERT Class 9 Science Chapter 13 MCQ Why Do We Fall Ill? and verify his score to check preparedness

#1. Which of the following can you make ill if you come in contact with an infected person?

a) High blood pressure

a) High blood pressure

b) Sneezing

b) Sneezing

c) Blood cancer

c) Blood cancer

d) Genetic abnormalities

d) Genetic abnormalities

#2. Vectors can be defined as

a) micro-organisms which cause many diseases

a) micro-organisms which cause many diseases

b) diseased plants

b) diseased plants

c) infected persons

c) infected persons

d) animals carry infecting agents from sick person to another healthy person

d) animals carry infecting agents from sick person to another healthy person

#3. AIDS is not transmitted by

a) breast-feeding

a) breast-feeding

b) blood transfusion

b) blood transfusion

c) hugs

c) hugs

d) sexual contact

d) sexual contact

#4. Which one of the following is not important for individual health?

a) living in clean space

a) living in clean space

b) good economic condition

b) good economic condition

c) social equality & harmony

c) social equality & harmony

d) living in a large & well-furnished house

d) living in a large & well-furnished house

#5. Which one of the following disease is caused by protozoans?

a) Cholera

a) Cholera

b) Influenza

b) Influenza

c) Malaria

c) Malaria

d) AIDS

d) AIDS

#6. Mosquito is not responsible for

a) Brain fever

a) Brain fever

b) Malaria

b) Malaria

c) Typhoid

c) Typhoid

d) Dengue

d) Dengue

#7. Children are vaccinated for Polio because

a) it creates immunity in the body

a) it creates immunity in the body

b) prevents the entry of polio causing organism

b) prevents the entry of polio causing organism

c) vaccination kills the polio causing microorganisms

c) vaccination kills the polio causing microorganisms

d) all of the above

d) all of the above

#8. Which is wrong statement?

a) Acne is not caused by staphylococci

a) Acne is not caused by staphylococci

b) Peptic ulcers are caused by eating acidic food

b) Peptic ulcers are caused by eating acidic food

c) Cancers can be caused by genetic abnormalities

c) Cancers can be caused by genetic abnormalities

d) High blood pressure is caused by excessive weight & lack of exercises

d) High blood pressure is caused by excessive weight & lack of exercises

#9. Mosquito breeds in

a) river

a) river

b) stagnant/standing water

b) stagnant/standing water

c) flowers

c) flowers

d) leaves

d) leaves

#10. Which one of the following is not a bacterial disease?

a) Influenza

a) Influenza

b) Cholera

b) Cholera

c) Tuberculosis

c) Tuberculosis

d) Anthrax

d) Anthrax

#11. Why making anti-viral drugs is more difficult than making anti-bacterial drugs

a) viruses have protein coat

a) viruses have protein coat

b) viruses make use of host machinery

b) viruses make use of host machinery

c) viruses are on the border line of living & non-living

c) viruses are on the border line of living & non-living

d) viruses have very few biochemical mechanisms

d) viruses have very few biochemical mechanisms

#12. If you live in overcrowded & poorly ventilated house, it is possible that you may suffer from which of the following diseases?

a) cancer

a) cancer

b) AIDS

b) AIDS

c) air borne diseases

c) air borne diseases

d) cholera

d) cholera

#13. Which one of the following has a long-term effect on the health of an individual?

a) Common cold

a) Common cold

b) Stress

b) Stress

c) Chicken pox

c) Chicken pox

d) Chewing tobacco

d) Chewing tobacco

#14. Which one of the following is not a viral disease?

a) AIDS

a) AIDS

b) Dengue

b) Dengue

c) Influenza

c) Influenza

d) Typhoid

d) Typhoid

#15. Which disease is not transmitted by mosquitoes?

a) Malaria

a) Malaria

b) Brain fever or encephailitis

b) Brain fever or encephailitis

c) Dengue

c) Dengue

d) Pneumonia

d) Pneumonia

#16. Viruses, which cause hepatitis, are not transmitted through

a) water

a) water

b) air

b) air

c) personal contact

c) personal contact

d) food

d) food

#17. Which one of the following disease is not caused by bacteria?

a) Malaria

a) Malaria

b) Anthrax

b) Anthrax

c) Typhoid

c) Typhoid

d) Tuberculosis

d) Tuberculosis

#18. We should not allow mosquitoes to breed in our surroundings because they

a) multiply very fast & cause pollution

a) multiply very fast & cause pollution

b) are vectors for many diseases

b) are vectors for many diseases

c) bite & cause skin diseases

c) bite & cause skin diseases

d) are not important insects

d) are not important insects

#19. Which one of the following causes kala-azar?

a) Ascaris

a) Ascaris

b) Bacteria

b) Bacteria

c) Trypanosoma

c) Trypanosoma

d) Leishmania

d) Leishmania

Finish

Results

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To Be Continued