Chapter 13 Why do we fall ill? MCQs for Class 9 Science

Chapter 13 Why do we fall ill? MCQs for Class 9 Science

Here students can practice Chapter 13 Why do we fall ill? MCQs for Class 9 Science. All the MCQs are divided into several sub-pages. Each page has 40 MCQs, for the next page just scroll down and click on the buttons. Also you can practice Class 9 Science MCQs (Multiple Choice Questions) for other chapters.

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Q 1.: This has a long term effect on the health

(A) Chewing tobacco

(B) Common cold

(C) Typhoid

(D) Chicken pox

Option – (a)

Q 2.: An acute disease is the one that 

(A) Lasts for short duration

(B) Lasts for long duration

(C) Spread by contact

(D) Heritable disease

Option – (a)

Q 3.: Disease-causing factors existing within the body itself are called

(A) Heredity factor

(B) Extrinsic factor

(C) Congenital factor

(D) Intrinsic factor

Option – (d)

Q 4.: Clean drinking water is related to

(A) Personal hygiene 

(B) Community health

(C) Social status 

(D) Personal preference

Option – (b)

Q 5.: This is not a congenital disease

(A) Haemophilia

(B) Tuberculosis

(C) Colour blindless

(D) Thalassemia

Option – (b)

Q 6.: Ill health is due to 

(A) Environmental pollution

(B) Lack of personal hygiene

(C) Dirty drinking water

(D) All of these

Option – (d)

Q 7.: Kwashiorkor is caused due to deficiency of

(A) Iodine

(B) Vitamins

(C) Carbohydrate

(D) Protein

Option – (d)

Q 8.: If you live in a overcrowded and poorly ventilated house, it is possible that you may suffer from

(A) Cancer

(B) AIDS

(C) Air-borne diseases

(D) Cholera

Option – (c)

Q 9.: You may fall ill if you come in contact with a patient suffering from 

          (A) Typhoid

(B) High blood pressure

(C) Diabetes

(D) Tuberculosis

Option – (d)

Q 10.: A patient was advised to take aspirin and bed rest by her doctor. She must be suffering from

(A) Cholera

(B) Hepatitis

(C) Arthritis

(D) Tuberculosis

Option – (b)

Q 11.: AIDS can’t be transmitted by

(A) Sexual contact

(B) Hugs

(C) Breast feeding

(D) Blood transfusion

Option – (b)

Q 12.: The disease not transmitted by mosquitoes is

(A) Dengue

(B) Malaria

(C) Brain fever or Encephalitis

(D) Pneumonia

Option – (d)

Q 13.: We should not allow mosquitoes to breed in our surroundings because they 

(A) Multiply very fast and cause pollution

(B) Are vectors of many diseases

(C) Bite and cause skin diseases

(D) Are not important insects

Option – (b)

Q 14.: This is not important for individual health

(A) Living in clean space

(B) Good economic condition

(C) Social equality and harmony

(D) Living in a large and well-furnished house

Option – (d)

Q 15.: Breathing contaminated air causes disease related to

(A) Digestive system

(B) Respiratory system

(C) Circulatory system

(D) None of these

Option – (b)

Q 16.: The infectious agents of which of the following diseases will spread when a patient of this disease coughs 

(A) T.B. and Hepatitis

(B) T.B., Influenza and Cholera

(C) AIDS, T.B. and Hepatitis

(D) T.B. and Influenza

Option – (d)

Q 17.: Making anti-viral drugs is more difficult than making anti-bacterial medicines because

(A) Viruses make use of host machinery

(B) Viruses are on the border line of living and non-living 

(C) Viruses have very few biochemical mechanisms of their own

(D) Viruses have a protein coat

Option – (c)

Q 18.: Which one of the following is not a bacterial disease?

(A) Cholera

(B) Tuberculosis

(C) Anthrax

(D) Influenza

Option – (d)

Q 19.: Which of the following disease is not transmitted by mosquito?

(A) Brain fever

(B) Malaria

(C) Typhoid

(D) Dengue

Option – (c)

Q 20.: Which one of the following disease is not caused by bacteria?

(A) Typhoid

(B) Anthrax

(C) Tuberculosis

(D) Malaria

Option – (d)

Q 21.: Which one of the diseases is caused by protozoans?

(A) Malaria

(B) Influenza

(C) AIDS

(D) Cholera

Option – (a)

Q 22.: Which one of the following has a long term effect on the health of an individual?

(A) Common cold

(B) Chicken pox

(C) Chewing tobacco

(D) Stress

Option – (c)

Q 23.: Which of the following can make you ill if you come in contact with an infected person?

(A) High blood pressure

(B) Genetic abnormalities

(C) Sneezing

(D) Blood cancer

Option – (c)

Q 24.: Which one of the following causes Kala-azar?

(A) Ascaris

(B) Trypanosoma

(C) Leishmania

(D) Bacteria

Option – (c)

Q 25.: Which one of the following is not important for individual health?

(A) Living in clean space

(B) Good economic condition

(C) Social equality and harmony

(D) Living in a large and well furnished house

Option – (d)

Q 26.: You are aware of Polio Eradication Programme in your city. Children vaccinated because

(A) Vaccinated kills the polio causing micro-organisms

(B) Prevent the entry of polio causing organism

(C) It creates immunity in the body

(D) All of the above

Option – (c)

Q 27.: Viruses, which cause hepatitis, are transmitted through

(A) Air

(B) Water

(C) Food

(D) Personal contact

Option – (b)

Q 28.: The pathogens OD  disease are

(A) Protozoa

(B) Bacteria

(C) Virus

(D) All of the above

Option – (a)

Q 29.: The bacteria among the following is

(A) Salmonella typhi

(B) Plasmodium

(C) Rabies virus

(D) Trypanosome

Option – (d)

Q 30.: HIV virus attacks one of the following cells in our body

(A) White Blood Cells

(B) Red Blood Cells

(C) Long cell

(D) Liver cell

Option – (c)

Q 31.: The BCG vaccine is given for the immunity against

(A) Jaundice

(B) Hepatitis

(C) Tuberculosis

(D) Malaria

Option – (c)

Q 32.: The disease that affects our lungs is

(A) Rabies

(B) AIDS

(C) Polio

(D) Tuberculosis

Option – (d)

Q 33.: Larynx is called

(A) Voice box

(B) Respiratory organ

(C) Music box

(D) None of the above

Option – (a)

Q 34.: Which one of the following is not a viral disease? 

(A) Dengue

(B) AIDS

(C) Typhoid

(D) Influenza

Option – (c)

Q 35.: Example of communicable diseases are Tuberculosis

(A) Diabetes

(B) Arthritis

(C) Cancer

(D) None 

Option – (a)

Q 36.: Sleeping sickness is caused by ___________, a protozoan.

(A) Trypanosoma

(B) Euglena

(C) Plasmodium

(D) Amoeba

Option – (a)

Q 37.: Microbes are immediate cause of __________ disease.

(A) Infectious

(B) Non-infectious

(C) Acute

(D) Chronic

Option – (a)

Q 38.: Which of the following diseases is caused by worm?

(A) Measles

(B) Poliomyelitis

(C) Tuberculosis

(D) Elephantiasis

Option – (d)

Q 39.: Malarial parasite after entering the human body reaches the

(A) Liver and then RBCs

(B) Stomach and then RBCs

(C) Liver and the  WBCs

(D) Stomach and then salivary glands

Option – (a)

Q 40.: We should not allow mosquitoes to breed in our surroundings because they

(A) Multiply very fast and cause pollution

(B) Are vectors for many diseases

(C) Bite and cause skin diseases

(D) Are not important insects

Option – (b)

Pagination

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We hope that these Chapter 13 Why do we fall ill? MCQs for Class 9 Science helped you in learning new concepts. All questions are based on NCERT syllabus and some of them have been asked in various competitive exams. You can go to the next pages to practice more for Chapter 13 Why do we fall ill? MCQs for Class 9 Science, click on the question range given above.

Also you can practice Class 9 Science MCQs (Multiple Choice Questions) for other chapters.