Adaptive immunity

Question 1

Define immunological memory

Answer 1

Exposure of an immunologically primed animal to the same antigen leads to the activation of memory cells, which were established during the primary immune response. An enhanced immune response is the outcome

Question 2

What are the types of T cells

Answer 2

• T helper cells
• Cytotoxic T cell
• T regulatory cells

Question 3

What is cell mediated immunity

Answer 3

• An immune response that does not involve antibodies but releases cytokines
• involves the activation of cytotoxic T cells, which results in the death of virally infected or damaged body cells

Question 4

What is involved in humoral immunity

Answer 4

Involves T helper cells and APC, and causes B cells to differentiate to memory or plasma cells

Question 5

What type of receptors do T helper cells have

Answer 5

CD3+

CD4+

Question 6

Describe T cell receptors

Answer 6

• Binds with MHC 1 or MHC 2 receptors on other cells

- transmits information from outside the cell to inside

Question 7

Describe B cell receptors

Answer 7

• When are on surface (surface immunoglobulin)

- Free receptors (antigens)

Question 8

What are the 5 types of immunoglobins

Answer 8

IgG (serum)
IgA (mucosal)
IgM (early phase)
IgE (Allergy)
IgD (Differentiation)