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Human Health and Disease · Question 89

AIPMT 2002MCQEasy📈 Topic in 25% papers+4−1
1

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

Answer

(3) Rapid cell division

Solution

As per NCERT, cancer cells divide uncontrollably and rapidly (loss of contact inhibition).

∵ Radiation damages DNA, and cells that are dividing rapidly (replicating their DNA again and again) are the most sensitive to this damage.

⇒ In radiotherapy, tumour cells are therefore killed lethally while the surrounding normal (slowly dividing) tissue is affected less.

∴ Cancerous cells are easily destroyed by radiation due to rapid cell division.

Answer: (3)

AIPMT 2002

Keep practising — Human Health and Disease

2

Which one of the following is correct match ?

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

L.S.D. is : -

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

Salmonella is related with:

  1. T.B.
  2. Tetanus
  3. Typhoid
  4. Polio
AIPMT 2001
5

Which is the most infectious disease?

  1. AIDS
  2. Malaria
  3. Hepatitis-B
  4. Cough and cold
AIPMT 2001
6

Interferons are synthesized in response to

  1. Bacteria
  2. Mycoplasma
  3. Viruses
  4. Fungi
AIPMT 2001
7

Reason of lung cancer is:

  1. Calcium fluoride
  2. Cement factory
  3. Asbestos
  4. Bauxite mining
AIPMT 2001
8

Which fish selectively feed on larva of mosquito?

  1. Clarias
  2. Rohu
  3. Exocoetus
  4. Gambusia
Out of syllabusAIPMT 2001
9

Which is showing accurate pairing?

  1. Gonorrhoea - Leishmania donovani
  2. Syphilis - Treponema pallidum
  3. Typhoid - Mycobacterium leprae
  4. AIDS - Bacillus conjugalis
AIPMT 2000
10

Saline solution is given to patients of Cholera because

  1. NaCl produces energy
  2. Na+ prevents water loss from body
  3. NaCl is antibacterial
  4. NaCl functions as regulatory material
AIPMT 2000

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