Q. No.To which type of barriers under innate immunity, do the saliva in the mouth and the tears from the eyes, belong?
1. Cytokine barriers
2. Cellular barriers
3. Physiological barriers
4. Physical barriers
Subtopic: Details of Immunity |
91%
From NCERT
AIPMT - 2008
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Which one of the following acts as a physiological barrier to the entry of microorganisms in a human body?
1. Tears
2. Monocytes
3. Skin
4. Epithelium of urogenital tract
Subtopic: Details of Immunity |
79%
From NCERT
AIPMT - 2011
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Select the incorrect statement with respect to acquired immunity.
| 1. | Acquired immunity is non-specific type of defense present at the time of birth. |
| 2. | Primary response is produced when our body encounters a pathogen for the first time. |
| 3. | Anamnestic response is elicited on subsequent encounters with the same pathogen. |
| 4. | Anamnestic response is due to memory of first encounter. |
Subtopic: Details of Immunity |
81%
From NCERT
NEET - 2022
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Match List-I with List-II:
Choose the correct answer from the options given below:
| List-I | List-II | ||
| (a) | Cellular barrier | (i) | Interferons |
| (b) | Cytokine barrier | (ii) | Mucus |
| (c) | Physical barrier | (iii) | Neutrophils |
| (d) | Physiological barrier | (iv) | HCI in gastric juice |
Choose the correct answer from the options given below:
| (a) | (b) | (c) | (d) | |
| 1. | (ii) | (iii) | (iv) | (i) |
| 2. | (ii) | (iii) | (i) | (iv) |
| 3. | (iii) | (iv) | (ii) | (i) |
| 4. | (iii) | (i) | (ii) | (iv) |
Subtopic: Details of Immunity |
88%
From NCERT
NEET - 2022
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Humans have acquired an immune system that produces antibodies to neutralize pathogens. Still innate immune system is present at the time of birth because it:
| 1. | is very specific and uses different macrophages |
| 2. | produces memory cells for mounting a fast secondary response |
| 3. | has natural killer cells that can phagocytose and destroy microbes |
| 4. | provides passive immunity |
Subtopic: Details of Immunity |
55%
From NCERT
NEET - 2019
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In which one of the following options the two examples are correctly matched with their particular type of immunity?
| Examples | Type of immunity | |
| (a) | Polymorphonuclear leukocytes and monocytes | Cellular barriers |
| (b) | Anti-tetanus and anti-snake bite injection | Active immunity |
| (c) | Saliva in mouth and tears in eyes | Physical barriers |
| (d) | Mucus coating of the epithelium lining the urinogenital tract and HCl in the stomach | Physiological barriers |
2. (b)
3. (c)
4. (d)
Subtopic: Details of Immunity |
73%
From NCERT
AIPMT - 2012
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Subtopic: Details of Immunity |
86%
From NCERT
AIPMT - 2001
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The substance produced by a cell in viral infection that can protect other cells from further infection is
1. serotonin
2. colostrum
3. interferon
4. histamine
Subtopic: Details of Immunity |
93%
From NCERT
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Given below are two statements: One is labelled as Assertion (A) and the other is labelled as Reason (R).
In the light of the above statements, choose the correct answer from the options given below:
| Assertion (A): | Some human organs like liver, kidney fail to function normally and transplantation is the only remedy to enable the patient to live a normal life. |
| Reason (R): | Tissue matching and blood group matching are essential before undertaking any transplant and patient has to take immunosuppresant thereafter. |
| 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. | (A) is False but (R) is True. |
Subtopic: Details of Immunity |
63%
From NCERT
NEET - 2024
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Match List - I with List - II
Choose the correct answer from the options given below:
| List-I | List-II | ||
| (A) | Cytokine barriers | (I) | Mucus coating of respiratory tract |
| (B) | Cellular barriers | (II) | Interferons |
| (C) | Physiological barriers | (III) | Neutrophils and Macrophages |
| (D) | Physical barriers | (IV) | Tears and Saliva |
Choose the correct answer from the options given below:
| Options: | (A) | (B) | (C) | (D) |
| 1. | (II) | (III) | (IV) | (I) |
| 2. | (III) | (I) | (IV) | (II) |
| 3. | (III) | (I) | (II) | (IV) |
| 4. | (II) | (III) | (I) | (IV) |
Subtopic: Details of Immunity |
76%
From NCERT
NEET - 2023
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