341.
Humans have acquired immune system that produces antibodies to neutralise pathogens. Still innate immune system is present at the time of birth because it A
provides passive immunity
B
is very specific and uses different macrophages
C
produces memory cells for mounting fast secondary response
D
has natural killer cells which can phagocytose and destroy microbes
Answer :
has natural killer cells which can phagocytose and destroy microbes
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342.
Antivenom injection contains preformed antibodies while polio drops that are administered into the body contain A
Activated pathogens
B
Harvested antibodies
C
Gamma globulin
D
Attenuated pathogens
Answer :
Attenuated pathogens
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343.
Growth of population is due to A
Natality and Emigration
B
Natality and immigration
C
Mortality and immigration
D
Mortality and Emigration
Answer :
Natality and immigration
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344.
Deposition of cotton fibers in occupational lung disease is called A
Antherocosis
B
Bagossiosis
C
Bysinosis
D
Siderosis
Answer :
Bysinosis
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345.
Toxin produced by tetanus affects A
Voluntary Muscles
B
Involuntary Muscles
C
Both voluntary & involuntary muscles
D
Jaw bones
Answer :
Voluntary Muscles
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346.
Vaccine is not available for malariea because A
Plamodium hides in liver
B
Plasmodium does not produce antibodies
C
Host's body does not produce antibodies against Plasmodium
D
Plasmodium kills lymphocytes
Answer :
Host's body does not produce antibodies against Plasmodium
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347.
Which stage of Plasmodium contains "Rhoptries" A
Merozoite
B
Sporozoite
C
Signet ring stage
D
Ookinete
Answer :
Merozoite
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348.
Anthistamine drug is effective in A
Bacterial infection
B
Viral infection
C
Paraplagia
D
Allergy
Answer :
Allergy
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349.
National average of infant mortality rate is A
58
B
86
C
85
D
15
Answer :
58
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350.
Number of births per 1000 is A
Growth rate
B
Conception rate
C
Reproduction rate
D
Crude birth rate
Answer :
Crude birth rate
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