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Human Health and Disease · Question 63

AIPMT 2011 (Mains)MCQMedium📈 Topic in 50% papers+4−1
1

Which one of the following options gives the correct matching of a disease with its causative organism and mode of infection?

  1. Disease Pneumonia, Causative Organism Streptococcus pneumoniae, Mode of Infection Droplet infection
  2. Disease Malaria, Causative Organism Plasmodium vivax, Mode of Infection Bite of male Anopheles mosquito
  3. Disease Elephantiasis, Causative Organism Wuchereria bancrofti, Mode of Infection With infected water and food
  4. Disease Typhoid, Causative Organism Salmonella typhi, Mode of Infection With inspired air

Answer

(1) Disease Pneumonia, Causative Organism Streptococcus pneumoniae, Mode of Infection Droplet infection

Solution

As per NCERT, pneumonia is caused by Streptococcus pneumoniae and Haemophilus influenzae; a healthy person acquires the infection by inhaling the droplets/aerosols released by an infected person. ⇒ (1) is correct.

(2) Malaria is transmitted by the bite of the female Anopheles mosquito, not the male.

(3) Filariasis (elephantiasis) is transmitted by the bite of the female Culex mosquito.

(4) Typhoid spreads through food and water contaminated with Salmonella typhi.

Answer: (1)

AIPMT 2011 (Mains)

Keep practising — Human Health and Disease

2

Common cold is not cured by antibiotics because it is:

  1. caused by a Gram-positive bacterium
  2. caused by a Gram-negative bacterium
  3. not an infectious disease
  4. caused by a virus
AIPMT 2011 (Mains)
3

Where will you look for the sporozoites of the malarial parasite ?

  1. red blood corpuscles of humans suffering from malaria
  2. spleen of infected humans
  3. Salivary glands of freshly moulted female Anopheles mosquito
  4. Saliva of infected female Anopheles mosquito
AIPMT 2011 (Prelims)
4

Which one of the following acts as a physiological barrier to the entry of microorganisms in human body?

  1. Epithelium of urogenital tract
  2. Tears
  3. Monocytes
  4. Skin
AIPMT 2011 (Prelims)
5

A certain patient is suspected to be suffering from Acquired Immuno Deficiency Syndrome. Which diagnostic technique will you recommend for its detection?

  1. ELISA
  2. MRI
  3. Ultra sound
  4. WIDAL
AIPMT 2011 (Prelims)
6

At which stage of HIV infection does one usually show symptoms of AIDS?

  1. When the infecting retrovirus enters host cells
  2. When viral DNA is produced by reverse transcriptase
  3. When HIV replicates rapidly in helper T-lymphocytes and damages large number of these
  4. Within 15 days of sexual contact with an infected person
AIPMT 2011 (Prelims)
7

Which one of the following techniques is safest for the detection of cancers?

  1. Computed tomography (CT)
  2. Magnetic resonance imaging (MRI)
  3. Histopathological studies
  4. Radiography (X-ray)
AIPMT 2010 (Mains)
8

A person suffering from a disease caused by Plasmodium, experiences recurring chill and fever at the time when

  1. the parasite after its rapid multiplication inside RBCs ruptures them, releasing the stage to enter fresh RBCs.
  2. the trophozoites reach maximum growth and give out certain toxins
  3. the sporozoites released from RBCs are being rapidly killed and broken down inside spleen
  4. the microgametocytes and megagametocytes are being destroyed by the WBCs.
AIPMT 2010 (Mains)
9

Ringworm in humans is caused by :

  1. Fungi
  2. Viruses
  3. Bacteria
  4. Nematodes
AIPMT 2010 (Prelims)
10

Widal test is used for the diagnosis of –

  1. Tuberculosis
  2. Malaria
  3. Typhoid
  4. Pneumonia
AIPMT 2010 (Prelims)
11

Which one of the following statements is correct with respect to AIDS ?

  1. The causative HIV retrovirus enters helper T-lymphocytes thus reducing their numbers
  2. AIDS patients are being fully cured cent per cent with proper care and nutrition
  3. The HIV can be transmitted through eating food together with an infected person
  4. Drug addicts are least susceptible to HIV infection
AIPMT 2010 (Prelims)

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