Which of the following best describes the difference in the way B cells and cytotoxic T cells respond to invaders?
1. B cells confer active immunity; cytotoxic T cells confer passive immunity
2. B cells kill viruses directly; cytotoxic T cells kill virus infected cells.
3. B cells secrete antibodies against a virus; cytotoxic T cells kill virus-infected cells
4. B cell accomplish humoral immunity.

Subtopic:  Active & Passive Immunity |
 65%
Level 2: 60%+
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Which of the following are incorrectly paired?
1. Variable Region – determines antibody specificity for an epitope
2. Immunioglobulins – glycoproteins that form epitopes
3. Constant Region – determines class and function of antibody
4. IgG – most abundant circulating antibodies, confer passive immunity to fetus

 
Subtopic:  Active & Passive Immunity |
 52%
Level 3: 35%-60%
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If you suspect major deficiency of antibodies in a person, then which of the following would you look for confirmatory evidence? 
1. Serum albumins 
2. Fibrinogen in plasma 
3. Serum globulins 
4. Triglycerides 
Subtopic:  Details of Immunity |
 78%
Level 2: 60%+
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Allergy is an exaggerated immune response towards antigens present in the environment. Which of the following antibodies are produced in response to these substances? 
1. IgE 
2. IgA 
3. IgM 
4. IgG
Subtopic:  Allergies & Autoimmunity |
 94%
Level 1: 80%+
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Given below are two statements 
Statement I: Use of readymade antibodies to protect the body against foreign agents is principal characteristics of passive immunity 
Statement II: Abundant IgA antibodies in colostrum protect the infant's body through active immunity 
In light of the above statements, choose the most appropriate answer from the options given below 
1. Both Statement I and Statement II are correct
2. Both Statement I and Statement II are incorrect 
3. Statement I is correct but Statement II is incorrect 
4. Statement I is incorrect but Statement II is correct  
Subtopic:  Active & Passive Immunity |
 73%
Level 2: 60%+
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Metastasis is the process of
1. Excessive cell proliferation
2. Transformation of benign tumors into malignant tumors
3. Movement of cancerous cell from one site to another site of the body
4. Transformation of a normal cell into a tumorous cell

 
Subtopic:  Cancer |
 76%
Level 2: 60%+
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Which of the following is not a component of innate immunity?
1. Interferons
2. Antibodies 
3. Complement protein
4. Phagocytes
Subtopic:  Details of Immunity |
 58%
Level 3: 35%-60%
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Match List I with List II:
List I List II
A. Wuchererua bancrofti I. Pneumonia
B. Trichophyton rubrum II. Malaria
C. Plasmodium vivax III. Filariasis
D. Haemophilus influenzae IV. Ringworm
Choose the correct answer from the options given below:
1.  A - (IV); B - (III); C - (II); D - (I)
2.  A - (III); B - (IV); C - (II); D - (I)
3.  A - (III); B - (II); C - (IV); D - (I)
4.  A - (IV); B - (III); C - (I); D - (II)
Subtopic:  Pneumonia & Related Questions | Common Cold & Malaria Introduction | Ascariasis & Filariasis | Fungal Infection & Concept of Immunity |
 93%
Level 1: 80%+
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In acquired immunity
A. Antibodies produced for allergens are of IgA type
B. B-cells themselves do not secrete antibodies but help T-cells to produce them
C. T-cells are responsible for the graft rejection
D. Each antibody molecule has four peptide chains

Choose the correct answer from the options given below
1. B and C only
2. C and D only
3. A and B only
4. B and D only
Subtopic:  Details of Immunity | Active & Passive Immunity | Drugs & Alcohol Abuse |
 75%
Level 2: 60%+
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Match List I with List II:
List I List II
A. Typhoid I. Trichophyton
B. Filariasis II. Salmonella
C. Ringworms  III. Entamoeba histolytica
D. Amoebiasis IV. Wuchereria

Choose the correct answer from the options given below: 
1. A-IV, B-I, C-III, D-II
2. A-II, B-IV, C-III, D-I
3. A-II, B-IV, C-I, D-III
4. A-II, B-I, C-IV, D-III
Subtopic:  Typhoid Fever | Amoebiasis | Ascariasis & Filariasis | Fungal Infection & Concept of Immunity |
 92%
Level 1: 80%+
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NEET 2026 - Target Batch - Vital
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