Paratope is an

(a)

Antibody binding site on variable regions

(b)

Antibody binding site on heavy regions

(c)

Antigen binding site on variable regions

(d)

Antigen binding site on heavy regions

All are peripheral lymphoid organs except

(a)

Lymph nodes

(b)

Spleen

(c)

Mucosa associated lymphoid tissue

(d)

Thymus

B Cells are activated by

(a)

Complement

(b)

Antibody

(c)

Interferon

(d)

Antigen

______ is not a feature of acquired immunity.

(a)

diversity

(b)

recognitionof self

(c)

non-specific

(d)

memory

Lymph nodes are seen in the ______

(a)

Toes

(b)

heart

(c)

Neck

(d)

Palm

______ is a second generation vaccine.

(a)

Polio

(b)

MMR

(c)

Hepatitis B

(d)

DPT

______ is a secondary lymphoid organ found in pharynx.

(a)

Adenoid

(b)

Tonsils

(c)

Thymus

(d)

Spleen

______ is the first one to encounter the antigen that enters tissue spaces.

(a)

Spleen

(b)

Lymph node

(c)

Bone marrow

(d)

GALT

(i) When a cell undergoes malignant transformation it acquires a new surface antigen.
(ii) Allergy responses are medIated by IgA.
(iii) Western blot test deted~ the' viral core protein.
(iv) Passive immunity requires the body to produce antibodies
(a) ii and iv
(b) iii and iv
(c) i and iii
(d) i and iv

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i and iii

Assertion: Opsonisation results in clumping of antigens.
Reason: It results in production of antitoxins.
(a) A and R are true, R is the correct explanation of A
(b) A and R are true, R is not the correct explanation of A
(c) A is true, R is false
(d) Both A and R are false

(a) precipitation
(b) opsonisation
(c) diapedesis
(d) neutralization

(a) Dendritic cells
(b) Axon
(c) Macrophages
(d) Leucocytes

Ability of body to fight against a disease ______

Process of production of blood cells in bone marrow ______

Another word for tumors _______

i. Agglutination	Particulate antigen
ii. Opsonin	Phagocytosis
iii. Precipitin	soluble antigen
iv. Neutralization	auto antigens

(a) ii only
(b) iii and iv
(c) iv only
(d) i and ii 

How does immune system work?

Define acquired immunity.

Mention the functions of immunoglobulins?

Differentiate between:
Humoral and CMI immunity

Explain the structure of immunoglobulin with suitable diagram.

Differentiate primary and secondary lymphoid organs with an example.

What is agglutination?

What is vaccine? What are its types?

Write a note on different types of antigen antibody reactions.