Chapter 7 Adaptive Immunity

Question 1

What are antigens

Answer 1

They are molecular targets of antibodiess and lymphocytes

Question 2

Where are T cells from

Answer 2

Thymus

Question 3

Where are B cells from

Answer 3

The bone marrow

Question 4

What is clonal selection

Answer 4

Triggered by the infection process it is when an antigen Is processed by a phagocyytic cell (Dendritic cells) which also expresses the processed antigen on their surfaces and present the antigen to lymphocytes

Question 5

What can B cells turn into

Answer 5

Plasma cells that become factories for the production of antiboidies

Question 6

What can T cells into

Answer 6

T cytoxic cells kills a target cell
T helper cells aids the clonal section
T regulatory cells suppresses innaprpriate immune response

Question 7

Humoral immunity

Answer 7

When antibodies float around the blood and defend against microbes and toxins1

Question 8

Cellular immunity

Answer 8

When T cells circulate the body snf sis om defending against intracellular pathogens and cancer cells

Question 9

Active vs passive immunity

Answer 9

Active immunity is acquired through vaccines it is a purposeful response to antigens
Passive immunity is when there has had previous exposure and the body develops an immune response

Question 10

What is an immunogen

Answer 10

A molecule that will induce an immune response

Question 11

IgG description

Answer 11

Most abundant courses the placenta

Question 12

IgA description

Answer 12

Found in secretions

Question 13

Igm Description

Answer 13

The largest immunoglobulin the first immunoglobulin to be produced in the human body

Question 14

IgE Description

Answer 14

Primarily good with allergies and parasites

Question 15

IgD Description

Answer 15

An early receptor for the surface of early B cells

Question 16

What are the three parts to an antibody molecule

Answer 16

Two identical fragments called the antigen binding fragments and the other part is the crystalizzeable fragment

Question 17

What does the antigen binding fragment do

Answer 17

Contains the recognition sites for antigens and confers the molecule specificity towards a particular antigen

Question 18

What does the crystallizable fragment do

Answer 18

Responsible for the bilogical functions of antibodies

Question 19

What of antibodies do

Answer 19

Protect the body against infection

Question 20

How do antiboidies prevent infection

Answer 20

Neutralization
Aggulation
Precipitation

Question 21

Name the phases of the immune response

Answer 21

Fitsy phase is the generation of clonal diversity
Second phase clonal selection

Question 22

What is clonal diversity

Answer 22

The production of a large population of T cells before birth that have the capacity to recognize almost any foreign antigens found in the environment