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Why Do We Fall Ill? (Class IX)

Why Do We Fall Ill

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Questions

Question 1 Multiple Choice (Single Answer)

Intrinsic factors are those disease-causing factors that exist within the human body. Which of the following is/are a disease-causing intrinsic factor?

  1. Microorganisms
  2. Inadequate diet
  3. Pollutants in the environment
  4. Narcotic drugs
  5. Hormonal imbalances
Question 2 Multiple Choice (Single Answer)

Degenerative diseases are those diseases in which the organs and tissues wear away and do not work so well with age. Which of the following is a degenerative disease?

  1. Haemophilia
  2. Paranoia
  3. Kwashiorkor
  4. Arthritis
  5. Cystic fibrosis
Question 3 Multiple Choice (Single Answer)

Which of the following diseases are caused due to the hyposecretion of hormones?

a. Addison's disease
b. Diabetes mellitus
c. Myxoderma
d. Grave's disease

  1. Only a and b
  2. Only b and c
  3. Only a and c
  4. Only b and d
  5. Only a and d
Question 4 Multiple Choice (Single Answer)

The deficiency of vitamin A causes the disease known as

  1. bleeding disease
  2. rickets
  3. scurvy
  4. night blindness
  5. beri-beri
Question 5 Multiple Choice (Single Answer)

Which of the following is not a property of communicable diseases?

  1. They are brought about by external factors.
  2. They cannot pass from one person to another.
  3. Transmission of infection occurs through direct contact or some medium.
  4. Community hygiene can reduce the incidence of these diseases.
  5. These diseases are caused by attack of pathogens.
Question 6 Multiple Choice (Single Answer)

Match the following:

 
Deficient nutrient Disease
a. Iron 1. Kwashiorkor
b. Iodine 2. Goitre
c. Protein 3. Microcytic anaemia
  1. a - 1, b - 2, c - 3
  2. a - 3, b - 2, c - 1
  3. a - 2, b - 3, c - 1
  4. a - 1, b - 3, c - 2
  5. a - 3, b - 1, c - 2
Question 7 Multiple Choice (Single Answer)

Which of the following statements is/are false?

a. Interferons are secreted by the microphages of human body to combat viruses.
b. Antibodies are the chemicals produced by bacteria and fungi to kill the pathogen.
c. Diseases that are caused by microbes are called non-infectious diseases.

  1. Only a
  2. Only a and b
  3. Only b
  4. Only b and c
  5. Only c
Question 8 Multiple Choice (Single Answer)

Which of the following are non-communicable diseases?

a. Tuberculosis
b. Hypertension
c. Chickenpox
d. Goitre

  1. Only a and b
  2. Only b and c
  3. Only a and c
  4. Only b and d
  5. Only a and d
Question 9 Multiple Choice (Single Answer)

Which of the following infectious agents cause tetanus?

  1. Viruses
  2. Protozoa
  3. Fungi
  4. Worms
  5. Bacteria
Question 10 Multiple Choice (Single Answer)

Which of the following statements is/are false?

a. All viruses live inside host cells whereas bacteria very rarely do so.
b. Worms multiply very quickly whereas bacteria, viruses and fungi multiply very slowly.
c. Most broad spectrum antibodies work against many species of bacteria.

  1. Only a
  2. Only a and b
  3. Only b
  4. Only b and c
  5. Only c
Question 11 Multiple Choice (Single Answer)

In which of the following diseases are viruses the infectious agents?

  1. Influenza
  2. Cholera
  3. Ringworm
  4. Kala-azar
  5. Elephantiasis
Question 12 Multiple Choice (Single Answer)

Direct transmission and indirect transmission are the two means of transmission of infectious diseases. Which of the following diseases spread through indirect transmission?

a. Tetanus
b. Hepatitis
c. Amoebiasis
d. Rabies

  1. Only a and b
  2. Only b and d
  3. Only b and c
  4. Only a and c
  5. Only a and d
Question 13 Multiple Choice (Single Answer)

Match the following:

 
a. Chronic diseases 1. These are those diseases that are caused due to genetic abnormalities, metabolic disorders or malfunctioning of an organ.
b. Infectious diseases 2. These are those diseases that are long-term with symptoms lasting months.
c. Congenital diseases 3. These are those diseases that are caused by some biological agents.
  1. a - 1, b - 2, c - 3
  2. a - 1, b - 3, c - 2
  3. a - 2, b - 3, c - 1
  4. a - 3, b - 2, c - 1
  5. a - 2, b - 1, c - 3
Question 14 Multiple Choice (Single Answer)

Which of the following B-lymphocytes are responsible for secreting antibodies into the blood circulation?

a. Plasma B-cells
b. Memory B-cells
c. Dividing B-cells

  1. Only a
  2. Only a and b
  3. Only b
  4. Only b and c
  5. Only c
Question 15 Multiple Choice (Single Answer)

Match the following:

 
Disease transmitted Insect vector
a. Bubonic plague 1. Rat flea
b. Epidemic typhus 2. Sandfly
c. Kala-azar 3. Louse
  1. a - 1, b - 2, c - 3
  2. a - 3, b - 2, c - 1
  3. a - 3, b - 1, c - 2
  4. a - 1, b - 3, c - 2
  5. a - 2, b - 3, c - 1
Question 16 Multiple Choice (Single Answer)

Which of the following drugs is/are recommended for the treatment of influenza?

a. Amantadine
b. Rifampicin
c. Rimantidine

  1. Only a
  2. Only a and b
  3. Only a and c
  4. Only b and c
  5. Only b
Question 17 Multiple Choice (Single Answer)

The symptoms of which of the following diseases are swollen lymph nodes, regular fever, sweating at night and weight loss?

  1. Polio
  2. AIDS
  3. Malaria
  4. Influenza
  5. Diarrhoea
Question 18 Multiple Choice (Single Answer)

Which of the following is a nematode that causes diarrhoea?

  1. Escherichia coli
  2. Norwalk
  3. Entamoeba histolytica
  4. Ascariasis
  5. Balantidium coli
Question 19 Multiple Choice (Single Answer)

Match the following:

 
Disease(s) Vaccine
a. Tuberculosis 1. Polio
b. Poliomyelitis 2. DPT-Hib
c. Diphtheria, Tetanus, Pertussis and Haemophilus influenzae type B 3. BCG
  1. a - 3, b - 1, c - 2
  2. a - 3, b - 2, c - 1
  3. a - 1, b - 2, c - 3
  4. a - 1, b - 3, c - 2
  5. a - 2, b - 1, c - 3
Question 20 Multiple Choice (Single Answer)

Match the following:

 
Disease Causative agent
a. Typhoid 1. Myxovirus influenza
b. Malaria 2. Plasmodium
c. Influenza 3. Salmonella typhi
  1. a - 3, b - 1, c - 2
  2. a - 1, b - 3, c - 2
  3. a - 2, b - 3, c - 1
  4. a - 1, b - 2, c - 3
  5. a - 3, b - 2, c - 1
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