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Human Health and Disease · Question 85

AIPMT 2005MCQEasy📈 Topic in 38% papers+4−1
1

Damage to thymus in a child may lead to

  1. A reduction in stem cell production
  2. Loss of cell mediated immunity
  3. A reduction in haemoglobin content of blood
  4. Loss of antibody mediated immunity

Answer

(2) Loss of cell mediated immunity

Solution

As per NCERT, the thymus is a primary lymphoid organ in which immature lymphocytes differentiate into antigen-sensitive T-lymphocytes.

⇒ T-lymphocytes are responsible for cell-mediated immunity (CMI).

⇒ Antibody-mediated (humoral) immunity is due to B-lymphocytes, which mature in the bone marrow.

∴ Damage to the thymus in a child leads to loss of cell mediated immunity.

Answer: (2)

AIPMT 2005

Keep practising — Human Health and Disease

2

Which one of the following is not correctly matched ?

  1. Anopheles culicifacies – Leishmaniasis
  2. Glossina palpalis – Sleeping sickness
  3. Culex pipiens – Filariasis
  4. Aedes aegypti – Yellow fever
AIPMT 2004
3

Carcinoma refers to :-

  1. Malignant tumours of the colon
  2. Benign tumours of the connective tissue
  3. Malignant tumours of the connective tissue
  4. Malignant tumours of the skin or mucous membrane
AIPMT 2003
4

Short-lived immunity acquired from mother to foetus across placenta or through mother's milk to the infant is categorised as :-

  1. Passive immunity
  2. Cellular immunity
  3. Innate non-specific immunity
  4. Active immunity
AIPMT 2003
5

Cancerous cells can easily be destroyed by radiations due to : -

  1. Fast mutation
  2. Lack of oxygen
  3. Rapid cell division
  4. Lack of nutrition
AIPMT 2002
6

Which one of the following is correct match ?

  1. Bhang – Analgesic
  2. Cocaine – opiatic narcotic
  3. Morphine – Hallucinogenic
  4. Reserpine – Tranquilliser
AIPMT 2001
7

L.S.D. is : -

  1. Stimulant
  2. Tranquilliser
  3. Hallucinogenic
  4. Sedative
AIPMT 2001
8

Salmonella is related with:

  1. T.B.
  2. Tetanus
  3. Typhoid
  4. Polio
AIPMT 2001
9

Which is the most infectious disease?

  1. AIDS
  2. Malaria
  3. Hepatitis-B
  4. Cough and cold
AIPMT 2001
10

Interferons are synthesized in response to

  1. Bacteria
  2. Mycoplasma
  3. Viruses
  4. Fungi
AIPMT 2001
11

Reason of lung cancer is:

  1. Calcium fluoride
  2. Cement factory
  3. Asbestos
  4. Bauxite mining
AIPMT 2001

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