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Q. No.Which one of the following acts as the “alarm signal” to activate the body’s immune system by stimulating helper T cells?
1.
B cells
2.
interleukin-2
3.
interleukin-1
4.
histamines
Subtopic: Details of Immunity | Active & Passive Immunity |
Level 4: Below 35%
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The immunoglobin ___________ is involved in the primary response to an invading microorganism, and ____________ is involved in the secondary response.
1. IgG / IgM
2. IgM / IgE
3. IgE / histamines
4. IgM / IgG
1. IgG / IgM
2. IgM / IgE
3. IgE / histamines
4. IgM / IgG
Subtopic: Details of Immunity | Active & Passive Immunity |
Level 3: 35%-60%
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| Assertion(A): | Second infection of the same pathogen is quickly eliminated. |
| Reason(R): | Killer T cells becomes hyperactivated, and destroy extracellular pathogens |
| 1. | Both (A) and (R) are true and (R) is the correct explanation of (A). |
| 2. | Both (A) and (R) are true but (R) is not the correct explanation of (A). |
| 3. | (A) is true but (R) is false. |
| 4. | Both (A) and (R) are false. |
Subtopic: Active & Passive Immunity | Allergies & Autoimmunity |
Level 3: 35%-60%
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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
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
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
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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NEET 2026 - Target Batch - Vital
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NEET 2026 - Target Batch - Vital
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
1. Interferons
2. Antibodies
3. Complement protein
4. Phagocytes
Subtopic: Details of Immunity |
58%
Level 3: 35%-60%
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