Heh 211:Immunology Question Paper

Heh 211:Immunology

Course:Bachelor Of Science

Institution: Mount Kenya University question papers

Exam Year:2012

INSTRUCTIONS:

This paper consists of two sections A and B.Answer all the questions in section A and any two in section B.

SECTION A: (40MARKS)

1.a) There is only one functional group of null cells.Explain (4MARKS)

b)Briefly describe structureof lymph node.
( 4MARKS)

c)What is the role of skin in innate immunity.
( 4MARKS)

d)What is meant by;
(i)prozone effect (4MARKS)
(ii)partial identity (4MARKS)

e)Briefly describe primary B cell deficiencies. (4MARKS)

f)Outline Kenya Expanded Programme on Immunization Schedule. (4MARKS)

g)Outline the organization of TCR
(4MARKS)

h)How is immunological tolerance induced (4MARKS)

i)Descibe the role of the cell mediated immune response in allograft rejection. (4MARKS)

j)Outline immune-regulatory functions associated with T cells.
(4MARKS)

SECTION B (30MARKS)answer any two question.

2.Describe various autoimmune diseases including the cause of autoimmunity and classification of autoimmune disorder. (15MARKS)

3)Describe varioys types of TDTH mediated hypersensitivity reactions. (15MARKS)

4.a)Tumor cells exhibit various characteristics.Explain (6MARKS)

b)How does cancer cells escape immune-surveilance (9MARKS)

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