BZYET-141 EM 2025 SOLVED ASSIGNMENT

Description

Bachelor’s Degree Programme
(BSCG)
BZYET-1411: Immunology
Valid from 1st January, 2025 to 31st December, 2025
ASSIGNMENT
Course Code: BZYET-141
Assignment Code: BZYET-141/TMA/2025
Maximum Marks: 100
Note: Attempt all questions. The marks for each question are indicated against it.
1.
2.
3.
4.
5.
6.
7.
8.
a)
b)
a)
b)
List various innate immune system barriers and protection
mechanisms.
Give a brief account of the secondary lymphoid organs of the
Immune System.
What is immune deficiency? Explain how our immune system
prevents autoimmunity?
What are the different types of hypersensitivity, according to
Gell and Coombs? Briefly explain.
Define the following terms:
i)
ii)
iii)
iv)
Mucosa Associated Lymphoid Tissue (MALT)
Haematopoiesis
Hinge region of the antibody
Human Leucocyte Antigen (HLA)
Write short notes on the following:
i)
ii)
iii)
iv)
Monoclonal antibodies
Opsonization
DNA Vaccines
Agglutination Reactions
Differentiate between the following pairs of terms:
i)
ii)
iii)
iv)
Helper “T” cells and cytotoxic “T” cells
Active and Passive immunity
MHC class-I and II molecules
Self and non-self antigens
What is the vaccine? Explain the mode of action of vaccine. Write
about the advantages and disadvantages of vaccination.
a)
b)
a)
Write the various steps in the establishment of bacterial
infection.
Explain the neutralization mechanism of bacteria by antibodies.
Define autoimmunity. Describe any two autoimmune disorders.
(5×2=10)
(5×2=10)
(2½×4=10)
(2½×4=10)
(2½×4=10)
(10)
(5×2=10)
(5×2=10)
3
b)
Describe the steps involved in the immunoelectrophoresis
technique.
9.
10.
a)
b)
Define antibodies and draw the structure of immunoglobulin.
Explain the significance of the different classes of antibodies.
How is the classical complement pathway activated? Discuss with a
suitable diagram.