Which one of the following acts as a physiological barrier to th

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 Multiple Choice QuestionsMultiple Choice Questions

21.

Which one of the following sets of items in the options 1 - 4 are correctly categorised with one exception in it?

  • Items Category Exception
    UAA, UAG, UGA Stop codons UAG

  • Items Category Exception
    Kangaroo, Koala, Wombat Australian marsupials Wombat
  • Items Category Exception
    Plasmodium, Cuscuta, Trypanosoma Protozoan parasites Cuscuta

  • Items Category Exception
    Plasmodium, Cuscuta, Trypanosoma Protozoan parasites Cuscuta

468 Views

22.

Identify the molecules (a) and (b) shown below and select the right option giving their source and use

  • Molecule Source Use
    Coaine Erythroxylum coca Accelerates the transport of dopamine
  • Molecule Source Use
    Heroin Cannabis sativa Depressant and slows down body functions
  • Molecule Source Use
    Cannabinoid Atropa belladona Produces hallucinations
  • Molecule Source Use
    Cannabinoid Atropa belladona Produces hallucinations
554 Views

23.

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

  • Preformed antibodies need to the injected to treat the bite by a viper snake

  • The antibodies against small pox pathogen are produced by T-lymphocytes

  • Antibodies are protein molecules, each of which has four light chains

  • Antibodies are protein molecules, each of which has four light chains

905 Views

24.

Which of the following viruses is not transferred through semen of an infected male?

  • Hepatitis B virus

  • Human immunodeficiency virus

  • Chikungunya virus

  • Chikungunya virus

749 Views

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25.

Match each disease with its correct type of vaccine:

Column I Column II
A. Tuberculosis 1. Harmless virus
B. Whooping cough 2. Inactivated toxin
C. Diphtheria 3. Killed bacteria
D. Polio 4. Harmless bacteria
  • Code
             
    A   B  C    D
             2   1   3    4
  • Code
             
    A   B    C    D
             3    2    4    1
  • Code
             
    A   B    C    D
             4    3     2    1
  • Code
             
    A   B    C    D
             4    3     2    1
1186 Views

26.

HIV that causes AIDS, first starts destroying 

  • B- Lymphocytes

  • Leucocytes

  • Helper T- Lymphocytes

  • Helper T- Lymphocytes

959 Views

27.

The active form of Entamoeba histolytica feeds upon

  • erythrocytes; mucosa and submucosa of colon

  • mucosa and submucosa of colon only

  • food in intestine

  • food in intestine

2866 Views

28.

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

  • MRI

  • Ultra Sound

  • WIDAL

  • WIDAL

346 Views

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29.

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

  • Tears

  • Monocytes

  • Skin

  • Skin


A.

Tears

Physiological barriers to the entry of microorganisms in the human body are tears in eyes, saliva in mouth and HCl in the stomach.The enzymes lysozymes are found in tears and saliva and inhibit the synthesis of peptidoglycan present in the cell wall of microorganisms especially eubacteria.

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30.

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

  • Red blood corpuscles of humans suffering from malaria

  • Spleen of infected humans

  • Salivary glands of freshly moulted female Anopheles mosquito

  • Salivary glands of freshly moulted female Anopheles mosquito

389 Views

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