Consider the given two statements:

I:  The acquired immune response is called "adaptive".
II:  In acquired immunity, pathogen-specific receptors are "acquired" during the lifetime of the organism.

1. Both I and II are correct and II explains I.
2. Both I and II are correct but II does not explain I.
3. I is correct and II is incorrect.
4. Both I and II are incorrect.

Subtopic:  Human Immune System |
 54%
To view explanation, please take trial in the course.
NEET 2025 - Target Batch
Hints

In the given diagram, A and B respectively represent:
   

1. The N and the C terminus of the polypeptide
2. The C and the N terminus of the polypeptide
3. The constant and variable regions of the antibody molecule
4. The variable and constant regions of the antibody molecule
Subtopic:  Human Immune System |
 77%
To view explanation, please take trial in the course.
NEET 2025 - Target Batch
Hints
To view explanation, please take trial in the course.
NEET 2025 - Target Batch

The principle of immunization or vaccination is based on which property of the immune system?

1. Specificity

2. Memory

3. Ability to recognize self from non-self

4. Cooperation between innate and adaptive immunity

Subtopic:  Active & Passive Immunity | Human Immune System |
 87%
From NCERT
To view explanation, please take trial in the course.
NEET 2025 - Target Batch
Hints
To view explanation, please take trial in the course.
NEET 2025 - Target Batch

advertisementadvertisement

A drug that would not be helpful in the treatment of allergies is:

1.  Antibiotics 2.  Antihistaminics
3.  Steroids 4.  Adrenaline

Subtopic:  Human Immune System |
 70%
From NCERT
To view explanation, please take trial in the course.
NEET 2025 - Target Batch
Hints
To view explanation, please take trial in the course.
NEET 2025 - Target Batch

Small masses of lymphatic tissue found throughout the ileum region of the small intestine are called:

1. Paneth cells 2. Meissener’s Plexus
3. Peyer’s patches 4. Entero-chromaffin cells

Subtopic:  Human Immune System |
 90%
From NCERT
To view explanation, please take trial in the course.
NEET 2025 - Target Batch
Hints
To view explanation, please take trial in the course.
NEET 2025 - Target Batch

What constitutes about 50% of the lymphoid tissue in the human body?

1. Malt 2. Spleen
3. Lymph nodes 4. Liver
Subtopic:  Details of Immunity | Active & Passive Immunity | Allergies & Autoimmunity | Human Immune System |
 94%
From NCERT
To view explanation, please take trial in the course.
NEET 2025 - Target Batch
Hints
To view explanation, please take trial in the course.
NEET 2025 - Target Batch

advertisementadvertisement

What will be true for the given diagram?
 
I: A is thymus and it is a secondary lymphoid organ.
II: B is MALT and is a primary lymphoid organ.
 
1. Only I 2. Only II
3. Both I and II 4. Neither I nor II
Subtopic:  Human Immune System |
 81%
From NCERT
To view explanation, please take trial in the course.
NEET 2025 - Target Batch
Hints
To view explanation, please take trial in the course.
NEET 2025 - Target Batch

The correct statements amongst the given are:
I: The primary lymphoid organs are where immature lymphocytes differentiate into antigen sensitive lymphocytes.
II:  The thymus is quite small at the time of birth and keeps increasing in size with age.
III: Antigens trapped in the lymph nodes are responsible for the activation of lymphocytes present there and cause the immune response.
1. Only Statement I and Statement II
2. Only Statement I and Statement III
3. Only Statement II and Statement III
4. Statement I, Statement II and Statement III
Subtopic:  Human Immune System |
 87%
From NCERT
To view explanation, please take trial in the course.
NEET 2025 - Target Batch
Hints
To view explanation, please take trial in the course.
NEET 2025 - Target Batch