• Why Do We Fall Ill - 1 (Class IX)
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Why Do We Fall Ill - 1 (Class IX)

Description: Why Do We Fall Ill - 1
Number of Questions: 15
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Tags: Why Do We Fall Ill - 1 Meaning of Good Health Diseases and Their Causes Principles of Treatment and Prevention of Diseases
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Which of the following is an autoimmune disease?

  1. Cancer

  2. Asthma

  3. Typhoid

  4. Rheumatoid arthritis

Show answer
Correct Option: D
Explanation:

Rheumatoid arthritis is an autoimmune disease that can cause chronic inflammation of the joints and other areas of the body.

Which of the following pairs of diseases can spread through blood transfusion?

  1. Cholera and hepatitis

  2. Hepatitis and AIDS

  3. Diabetes mellitus and malaria

  4. Hay fever and AIDS

Show answer
Correct Option: B
Explanation:

Hepatitis and AIDS can spread through blood transfusion.

Hydrophobia occurs during

  1. tetanus

  2. rabies

  3. polio

  4. cholera

Show answer
Correct Option: B
Explanation:

Rabies is a viral disease that causes acute inflammation of the brain in humans and other warm-blooded animals. Early symptoms can include fever and tingling at the site of exposure. These symptoms are followed by one or more of the following symptoms: violent movements, uncontrolled excitement, fear of water (hydrophobia), an inability to move parts of the body, confusion and loss of consciousness.

B.C.G. vaccine is used against

  1. T.B.

  2. leprosy

  3. food poisoning

  4. None of these

Show answer
Correct Option: A
Explanation:

B.C.G. is Bacillus Calmette–Guérin. It is a vaccine against tuberculosis.

Which of the following statements regarding vaccine is incorrect?

  1. A vaccine is a biological preparation that provides active acquired immunity to a particular disease.

  2. Vaccine contains a substance called antigen, which is recognised by our body's immune system as foreign.

  3. The antigens in vaccines are weakened or killed versions of substances that cause diseases.

  4. Vaccines can be administered against all infectious diseases.

Show answer
Correct Option: D
Explanation:

Vaccines cannot be administered against all infectious diseases.                 

Which of the following conditions is/are essential for good health?

  1. Proper sanitation

  2. Availability of clean drinking water

  3. Social equality and harmony

  4. Availability of adequate and nutritious food

  5. All of the above

Show answer
Correct Option: D
Explanation:

Junk food is not good for health.

Which of the following is not a degenerative disease?

  1. Arthritis

  2. Poor sight

  3. Depression

  4. Hearing defects

  5. Osteoporosis

Show answer
Correct Option: C
Explanation:

This is the correct option. Depression is not a degenerative disease. It is a mental disease.

Which of the following factors can cause diseases?

a. Environmental factors b. Specific infective agents c. Inherent defects of the organism

  1. Only a

  2. Only a and b

  3. Only b and c

  4. Only b

  5. All a, b and c

Show answer
Correct Option: D
Explanation:

This is the correct option as a disease is a response to environmental factors such as malnutrition, industrial hazards or climate, specific infective agents like worms, protozoans, fungi, bacteria or viruses and inherent defects of the organism such as genetic anomalies. This is a wrong option as environmental factors such as malnutrition, industrial hazards or climate and inherent defects of the organism such as genetic anomalies are also involved.

Which of the following is a disease caused by extrinsic factors?

  1. Kidney failure

  2. Beri-Beri

  3. Osteoporosis

  4. Haemophillia

  5. Cataract

Show answer
Correct Option: B
Explanation:

This is the correct option. Beri-Beri is a disease caused by extrinsic factors. It is caused due to the deficiency of vitamin B1 (Thiamine).

Which of the following is a protein deficiency disease?

  1. Xeropthalmia

  2. Night blindness

  3. Beri-Beri

  4. Kwashiorkor

  5. Cheilosis

Show answer
Correct Option: D
Explanation:

This is the correct option. Kwashiorkor is a protein deficiency disease.

Which of the following is a characteristic of communicable diseases?

  1. Community hygiene is ineffective in reducing the incidence of these diseases.

  2. They are caused by the attack of pathogens.

  3. These diseases are caused by internal factors.

  4. Transmission of these diseases does not occur.

  5. They occur due to the deficiency of nutrients in the diet.

Show answer
Correct Option: B
Explanation:

This is the correct option as this is a characteristic of communicable diseases.

Which of the following microorganisms cause 'elephantiasis'?

  1. Bacteria

  2. Parasites

  3. Protozoa

  4. Viruses

  5. Fungi

Show answer
Correct Option: B
Explanation:

This is the correct option. Parasites cause elephantiasis. It is a parasitic infection that causes extreme swelling in the arms and legs.

Which of the following measures can be adopted to prevent an infectious disease?

a. We should adopt the living conditions that are not overcrowded to avoid exposure to air-borne microbes. b. Safe drinking water should be provided to prevent exposure to water-borne microbes. c. Clean environment should be provided that should not allow mosquito breeding to prevent vector-borne diseases.

  1. Only a

  2. Only a and b

  3. Only b and c

  4. Only b

  5. All a, b and c

Show answer
Correct Option: D
Explanation:

This is the correct option as all of the above are the measures adopted to prevent an infectious disease.

All of the following are symptoms of AIDS, except

  1. swollen lymph nodes

  2. regular fever

  3. sweating at night

  4. malignant cancer of the liver cells

  5. weight loss

Show answer
Correct Option: D
Explanation:

This is the correct option as this is not a symptom of AIDS.

Which of the following is not a causative agent of diarrhoea?

  1. Escherichia coli

  2. Entamoeba

  3. Rotavirus

  4. Ascaris

  5. Salmonella

Show answer
Correct Option: D
Explanation:

This is the correct option as salmonella causes typhoid. Ascariasis is an infection of the small intestine caused by Ascaris lumbricoides (A. lumbricoides), which is a species of roundworm.

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