Section 23: Acquired Immunity

Question 0

What is an epitope?

Answer 0

And epitope is a park and then Ag that actually binds to an Ab.

Question 1

What is an antigen?

Answer 1

And antigen is usually a protein or polysaccharide that is recognized by the body as foreign matter.

Question 2

What is the function of B cells? What is the specialized training progeny cell called?

Answer 2

B cellsproduce antibodies. the specialized secreting progeny cell is a plasma cell.

Question 3

How much time is required to produce Abs?

Answer 3

7-10 days

Question 4

What other cell type, besides the type mentioned in question 3, results from B cell proliferation? What is its function?

Answer 4

Memory B cells also result from B cell proliferation. Their function is to provide a quick response to a future Ag exposure by producing Abs against that Ag.

Question 5

What does a T Cell cause to happen to many
H
Immune cells?

Answer 5

The T cell causes the proliferation of many immune
H
cells.

Question 6

Where do B and T cells mature?

Answer 6

B cells mature in the bone marrow; T cells mature in the thymus.

Question 7

What 3 cell types are required for an acquired immune response?

Answer 7

1. Antigen-presenting cell (APC), the T helper (TH) cell, and a B or T cell that is stimulated to proliferate.

Question 8

What to cytokines are required for an acquired immune response, and what cells secrete them?

Answer 8

The cytokines IL1 (interleukin 1) and IL2 (interleukin 2) are required for and acquired immune response. IL1 is secreted by the APC, and IL2 is secreted by the TH cell.

Question 9

3 Hallmarks of Acquired Immunity

Answer 9

Inducibility
Specificity
Memory