Basic Concepts

Question 0

The adaptive differs from the innate immune system by being very

Answer 0

Specific

Question 1

What mediates the connection between the innate and acquired immune response?

Answer 1

Messenger molecules known as CYTOKINES

Question 2

Antigen receptors bind to ..

Answer 2

Epitopes (small areas of the surface of the antigen)

Question 3

What is an epitope?

Answer 3

A small area of the molecular structures of the antigen, that the antigen receptors bind to

Question 4

Give two examples of antigen receptors

Answer 4

Antibodies (B cell antigen receptors& ones in blood)

T cell antigen receptors

Question 5

B and T cell antigen receptors are distributed how?

Answer 5

Clonally. Antigen encounters B cell with appropriate antibody to bind to it, the B cell divides.
When B cell matures into a plasma cell it secretes the specific immunoglobulin (antibodies) for the antigen

Question 6

Vaccinations work via what principle?

Answer 6

Memory of immune system

Response is faster and greater in magnitude if you re-encounter an antigen.

Question 7

Compare the innate and adaptive immune system characteristics

Answer 7

Innate

• non-specific response
• fast response (mins)
• no memory

Adaptive

• very specific
• slow response (days)
• Memory

Question 8

IgD is a

Answer 8

B cell receptor

Question 9

IgG is a

Answer 9

Virus neutraliser

Question 10

IgE triggers

Answer 10

Allergic response

Question 11

IgM is important in

Answer 11

Opsonisation

Question 12

IgA is found in

Answer 12

Secretions. protected against prototypic attack by secretory component