Class XII · Biology practice
Human Health and Disease PYQs Check your understanding, bookmark questions and revisit your mistakes.
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24 questions in this collection · Page 2 of 3
Human Health And Disease
The infectious stage of Plasmodium that enters
the human body is:
A Trophozoites
B Sporozoites
C Female gametocytes
D Male gametocytes
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Human Health And Disease
Identify the wrong statement with reference to
immunity.
A When exposed to antigen (living or dead) antibodies are produced in the host’s body. It is called "Active immunity".
B When ready-made antibodies are directly given, it is called "Passive immunity".
C Active immunity is quick and gives full response.
D Foetus receives some antibodies from mother, it is an example for passive immunity.
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Human Health And Disease
Identify the correct pair representing the causative agent of typhoid fever and the confirmatory test for typhoid.
A Salmonella typhi/Widal test
B Salmonella typhi/Anthrone test
C Streptococcus pneumoniae/Widal test
D Plasmodium vivax/UTI test.
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Human Health And Disease
Concanavalin A is:
A an alkaloid
B a lectin
C an essential oil
D a pigment
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Human Health And Disease
Which of the following immune responses is
responsible for rejection of kidney graft?
A Cell-mediated immune response
B Inflammatory immune response
C Humoral immune response
D Cell-mediated immune response
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Human Health And Disease
Drug called 'Heroin' is synthesized by:
A methylation of morphine
B glycosylation of morphine
C acetylation of morphine
D nitration of morphine
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Human Health And Disease
Match List I with List II:
List-I
List-II
(A)Typhoid
(I)Fungus
(B)Leishmaniasis
(II)Nematode
(C)Ringworm
(III)Protozoa
(D)Filariasis
(IV)Bacteria
Choose the correct answer from the options given
below:
A A-IV, B-III, C-I, D-II
B A-I, B-III, C-II, D-IV
C A-I, B-III, C-II, D-IV
D A-III, B-I, C-IV, D-II
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Human Health And Disease
Match List I with List II:
List-I
List-II
(A)Common cold
(I)Plasmodium
(B)Haemozoin
(II)Typhoid
(C)Widal test
(III)Rhinoviruses
(D)Allergy
(IV)Dust mites
Choose the correct answer form the options given
below:
A A-I, B-III, C-II, D-IV
B A-II, B-IV, C-III, D-I
C A-IV, B-II, C-III, D-I
D A-III, B-I, C-II, D-IV
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Human Health And Disease
Mad cow disease is caused by
A Prions
B Viroids
C Aspergillus sp.
D Mycoplasma sp.
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Mad cow disease (Bovine Spongiform Encephalopathy) is caused by infectious protein particles called prions. They do not contain nucleic acids and induce abnormal folding of normal proteins.
Human Health And Disease
Which of the following are secondary lymphoid organs? (a) Bone marrow (b) Tonsils (c) Spleen (d) Thymus Choose the correct answer from the options given below:
A (a) and (b) only
B (b) and (c) only
C (b) and (d) only
D (a) and (d) only
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Tonsils and spleen are secondary lymphoid organs. Bone marrow and thymus are primary lymphoid organs.
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