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 1 of 3
Human Health And Disease
Match List-I with List-II.
List-I
List-II
(A)Ringworm
(I)Haemophilus influenzae
(B)Filariasis
(II)Trichophyton
(C)Malaria
(III)Wuchereria bancrofti
(D)Pneumonia
(IV)Plasmodium vivax
Choose the correct answer from the options given below:
A A-III, B-II, C-IV, D-I B A-II, B-III, C-IV, D-I C A-II, B-III, C-I, D-IV D A-III, B-II, C-I, D-IV
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Human Health And Disease
Match List-I with List-II.
List-I
List-II
(A)Heroin
(I)Effect on cardiovascular system
(B)Marijuana
(II)Slow down body function
(C)Cocaine
(III)Painkiller
(D)Morphine
(IV)Interfere with transport
dopamine
Choose the correct answer from the options given below:
A A-III, B-IV, C-I, D-II B A-II, B-I, C-IV, D-III C A-I. B-II, C-III, D-IV D A-IV, B-III, C-II, D-I
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Human Health And Disease
In which blood corpuscles, the HIV undergoes replication and produces progeny viruses?
A Eosinophils B TH cells C B-lymphocytes D Basophils
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AI-generated explanation. Check against your textbook.
Explanation: HIV targets CD4+ T-lymphocytes (T helper cells). Inside these cells, the virus uses the cellular machinery to replicate and produce progeny virions, eventually destroying the T cells and weakening the immune response. Thus, HIV replication occurs in TH cells, not in other blood cells listed.
🧠 Did You Know? HIV specifically infects T helper (TH) cells and uses them for replication, leading to AIDS if untreated.
💡 NCERT Memory Line: HIV attacks CD4+ T-lymphocytes (T helper cells) and uses them for replication.
Human Health And Disease
Given below are two statements:Statement I: Autoimmune disorder is a condition where body defense mechanism recognizes its own cells as foreign bodies.Statement II: Rheumatoid arthritis is a condition where body does not attack self cells.
A Both Statement I and Statement II are
incorrect
B Statement I is correct but Statement II is
incorrect C Statement I is incorrect but Statement II is
correct D Both Statement I and Statement II are
correct
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Human Health And Disease
In gene therapy of Adenosine Deaminase (ADA)
deficiency, the patient requires periodic infusion of genetically engineered lymphocytes because:
A Gene isolated from marrow cells producing
ADA is introduced into cells at embryonic stages B Lymphocytes from patient's blood are grown in
culture, outside the body. C Genetically engineered lymphocytes are not
immortal cells. D Retroviral vector is introduced into these
lymphocytes.
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Human Health And Disease
Select the incorrect statement with respect to
acquired immunity.
A Anamnestic response is elicited on subsequent
encounters with the same pathogen. B Anamnestic response is due to memory of first
encounter. C Acquired immunity is non-specific type of
defense present at the time of birth. D Primary response is produced when our body
encounters a pathogen for the first time.
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Human Health And Disease
Match List-I with List-II.
List-I
List-II
(A)Filariasis
(I)Haemophilus influenzae
(B)Amoebiasis
(II)Trichophyton
(C)Pneumonia
(III)Wuchereria bancrofti
(D)Ringworm
(IV)Entamoeba histolytica
Choose the correct answer from the options given below:
A A-III, B-IV, C-I, D-II B A-I, B-II, C-IV, D-III C A-II, B-III, C-I, D-IV D A-IV, B-I, C-III, D-II
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Human Health And Disease
Match the following columns and select the correct
option:
Column-I
Column-II
(I)Typhoid
(A)Haemophilus influenzae
(II)Malaria
(B)Wuchereria bancrofti
(III)Pneumonia
(C)Plasmodium vivax
(IV)Filariasis
(D)Salmonella typhi
A (I)-(D), (II)-(C), (III)-(A), (IV)-(B) B (I)-(C), (II)-(D), (III)-(B), (IV)-(A) C (I)-(A), (II)-(C), (III)-(B), (IV)-(D) D (I)-(A), (II)-(B), (III)-(D), (IV)-(C)
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Human Health And Disease
The yellowish fluid "colostrum" secreted by mammary
glands of mother during the initial days of lactation has abundant antibodies (IgA) to protect the infant. This type of immunity is called as:
A Passive immunity B Active immunity C Acquired immunity D Autoimmunity
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Human Health And Disease
Match the following diseases with the causative
organism and select the correct option.
Column-I
Column-II
(A)Typhoid
(I)Wuchereria
(B)Pneumonia
(II)Plasmodium
(C)Filariasis
(III)Salmonella
(D)Malaria
(IV)Haemophilus
A (A)-(I), (B)-(III), (C)-(II), (D)-(IV) B (A)-(III), (B)-(IV), (C)-(I), (D)-(II) C (A)-(II), (B)-(I), (C)-(III), (D)-(IV) D (A)-(IV), (B)-(I), (C)-(II), (D)-(III)
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